Multi-selection of packages for updating / uninstalling (#510)

* Added option to select packages for updating

* Added option to select packages for uninstalling and option to uninstall all

* introduced some minor QoL changes: "Refresh" and "Preferences" buttons are now consistent, being drawn in the upper left on every tab; Search bar now doesn't have the "Search" button in "Installed" and "Updates" tabs - instead, every key stroke refreshes the filtered packages (it's a start for mentioned UX changes needed to improve the "Online" tab).

* Fixed unit tests

* Make search case-insensitive

* use function dienstend of Lambda

---------

Co-authored-by: JoC0de <53140583+JoC0de@users.noreply.github.com>

src/NuGetForUnity.Tests/Assets/Tests/Editor/NuGetTests.cs

@@ -12,7 +12,7 @@ public class NuGetTests
     [TearDown]
     public void Cleanup()
     {
-        NugetHelper.UninstallAll();
+        NugetHelper.UninstallAll(NugetHelper.InstalledPackages.ToList());
     }
 
     [Test]
@@ -44,7 +44,7 @@ public void InstallJsonTest()
         NugetHelper.InstallIdentifier(json608);
         Assert.IsTrue(NugetHelper.IsInstalled(json701), "The package was NOT installed: {0} {1}", json701.Id, json701.Version);
 
-        NugetHelper.UninstallAll();
+        NugetHelper.UninstallAll(NugetHelper.InstalledPackages.ToList());
         Assert.IsFalse(NugetHelper.IsInstalled(json608), "The package is STILL installed: {0} {1}", json608.Id, json608.Version);
         Assert.IsFalse(NugetHelper.IsInstalled(json701), "The package is STILL installed: {0} {1}", json701.Id, json701.Version);
     }
@@ -87,7 +87,7 @@ public void InstallRoslynAnalyzerTest()
         finally
         {
             // uninstall the package
-            NugetHelper.UninstallAll();
+            NugetHelper.UninstallAll(NugetHelper.InstalledPackages.ToList());
             Assert.IsFalse(NugetHelper.IsInstalled(analyzer), "The package is STILL installed: {0} {1}", analyzer.Id, analyzer.Version);
         }
     }
@@ -102,7 +102,7 @@ public void InstallProtobufTest()
         Assert.IsTrue(NugetHelper.IsInstalled(protobuf), "The package was NOT installed: {0} {1}", protobuf.Id, protobuf.Version);
 
         // uninstall the package
-        NugetHelper.UninstallAll();
+        NugetHelper.UninstallAll(NugetHelper.InstalledPackages.ToList());
         Assert.IsFalse(NugetHelper.IsInstalled(protobuf), "The package is STILL installed: {0} {1}", protobuf.Id, protobuf.Version);
     }
 
@@ -140,7 +140,7 @@ public void InstallBootstrapCSSTest()
         Assert.IsTrue(NugetHelper.IsInstalled(jQuery311), "The package was NOT installed: {0} {1}", jQuery311.Id, jQuery311.Version);
 
         // cleanup and uninstall everything
-        NugetHelper.UninstallAll();
+        NugetHelper.UninstallAll(NugetHelper.InstalledPackages.ToList());
 
         // confirm they are uninstalled
         Assert.IsFalse(NugetHelper.IsInstalled(bootstrap337), "The package is STILL installed: {0} {1}", bootstrap337.Id, bootstrap337.Version);
@@ -165,7 +165,7 @@ public void InstallStyleCopTest()
         Assert.IsTrue(NugetHelper.IsInstalled(styleCopId), "The package was NOT installed: {0} {1}", styleCopId.Id, styleCopId.Version);
 
         // cleanup and uninstall everything
-        NugetHelper.UninstallAll();
+        NugetHelper.UninstallAll(NugetHelper.InstalledPackages.ToList());
 
         Assert.IsFalse(NugetHelper.IsInstalled(styleCopPlusId), "The package is STILL installed: {0} {1}", styleCopPlusId.Id, styleCopPlusId.Version);
         Assert.IsFalse(NugetHelper.IsInstalled(styleCopId), "The package is STILL installed: {0} {1}", styleCopId.Id, styleCopId.Version);
@@ -194,7 +194,7 @@ public void InstallSignalRClientTest()
         }
 
         // cleanup and uninstall everything
-        NugetHelper.UninstallAll();
+        NugetHelper.UninstallAll(NugetHelper.InstalledPackages.ToList());
         Assert.IsFalse(NugetHelper.IsInstalled(signalRClient), "The package is STILL installed: {0} {1}", signalRClient.Id, signalRClient.Version);
     }
 
@@ -220,7 +220,7 @@ public void InstallMicrosoftMlProbabilisticCompilerTest()
         Assert.That(Path.Combine(libraryDirectory, "cs"), Does.Not.Exist);
 
         // cleanup and uninstall everything
-        NugetHelper.UninstallAll();
+        NugetHelper.UninstallAll(NugetHelper.InstalledPackages.ToList());
         Assert.IsFalse(
             NugetHelper.IsInstalled(probabilisticCompiler),
             "The package is STILL installed: {0} {1}",
@@ -442,7 +442,7 @@ public void TestUpgrading()
             componentModelAnnotation47.Id,
             componentModelAnnotation47.Version);
 
-        NugetHelper.UninstallAll();
+        NugetHelper.UninstallAll(NugetHelper.InstalledPackages.ToList());
 
         Assert.IsFalse(
             NugetHelper.IsInstalled(componentModelAnnotation5),

src/NuGetForUnity/Editor/NugetHelper.cs

@@ -718,9 +718,9 @@ private static void DeleteAllFiles(string directoryPath, string extension)
         /// <summary>
         ///     Uninstalls all of the currently installed packages.
         /// </summary>
-        internal static void UninstallAll()
+        internal static void UninstallAll(List<NugetPackage> packagesToUninstall)
         {
-            foreach (var package in InstalledPackages.ToList())
+            foreach (var package in packagesToUninstall)
             {
                 Uninstall(package);
             }