Localize code fixes and analyzers

[kant2002]

Closes #1352

[kant2002]

I would say this is draft to gather feedback on some key decisions which I have to do.

• Put constatns in tests
• Naming convention for resources.
• Remove IdentifierText from constants, since these value not used.

[StefanOssendorf]

If it's a draft please make it a real draft. Otherwise rocky may just merge it ;)

[rockfordlhotka]

My first scan through the code changes is quite positive, I like what you've done so far.

Can you provide more detail about the three decision points, and what you recommend?

[kant2002]

@StefanOssendorf unfortunately I press buttons first and think second. So I miss that opportunity 😄

@rockfordlhotka one by one.

• previously in tests was constants which is used in analyzers. I directly use string literals now. Anyway I cannot leave test code without changes. Maybe i can get to read from prebuilt LocalizationString but for me that’s tying too much to prod code.
• just voice your opinion on how I name resource strings
• Just inform that I remove not used code. Maybe it indeed used by some obscure ways.

[kant2002]

@rockfordlhotka can you take a look?

[rockfordlhotka]

I'm out of town this week, and will look when I get back.