Rework the contains condition

[Blueyescat]

Description

This PR reworks CondContains to make it more stable:

• Cleaned up its code
  • Removed much unnecessary codes
• Fixed some issues
• Added more features
• After the last changes, it wasn't supporting lists like contains 1 and 2 or contains 1 or 2, this is fixed

Here are some codes (effect commands) i used to test:
https://gist.github.com/Blueyescat/eadf558783dd7aa57d7255a069e7d449
all of them works as expected

Current syntaxes:

%inventories% (has|have) %itemtypes% [in [(the[ir]|his|her|its)] inventory]
%inventories% (doesn't|does not|do not|don't) have %itemtypes% [in [(the[ir]|his|her|its)] inventory]
%inventories/strings/objects% contain[s] %itemtypes/strings/objects%
%inventories/strings/objects% (doesn't|does not|do not|don't) contain %itemtypes/strings/objects%
[the] list [of] %objects% (doesn't|does not|do not|don't) contain %objects%
[the] list [of] %objects% contain[s] %objects%
(all|1¦any|2¦none) of %strings% contain[s] %strings%

---

Target Minecraft Versions: any
Requirements: none
Related Issues: #1404, #1838 and #2122

[FranKusmiruk]

Since we're still in beta-phase, I am going to merge this though I believe it may need some changes before the actual release comes out, watch out for any issues.

That being said, thanks for the contribution!