feat: add IsWindows8OrGreater and GetCurrentPackageFullName APIs

[halildurmus]

Description

Related Issue

Closes #943

Type of Change

• 🚀 feat – New feature (non-breaking change that adds functionality)
• 🛠️ fix – Bug fix (non-breaking change that fixes an issue)
• ❌ ! – Breaking change (fix or feature that causes existing functionality to change)
• ⚡ perf – Performance improvement
• 🧹 refactor – Code refactor (no functionality change)
• 📝 docs – Documentation update
• 🎨 style – Code style changes (formatting, renaming, etc.)
• 🧪 test – Test update or addition
• 🔧 build – Build related changes
• ✅ ci – CI related changes
• 🗑️ chore – Chore (maintenance, non-production code change)
• ◀️ revert – Revert a previous commit

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 0% with 3 lines in your changes missing coverage. Please review.

Project coverage is 61.64%. Comparing base (5a20056) to head (7f425bf).
Report is 2 commits behind head on main.

Files with missing lines	Patch %	Lines
packages/win32/lib/src/inline.dart	0.00%	3 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #944      +/-   ##
==========================================
- Coverage   61.80%   61.64%   -0.17%     
==========================================
  Files          35       35              
  Lines        1152     1155       +3     
==========================================
  Hits          712      712              
- Misses        440      443       +3     

Flag	Coverage Δ
win32	59.58% <0.00%> (-0.38%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files with missing lines	Coverage Δ
packages/win32/lib/src/inline.dart	0.00% <0.00%> (ø)