Handle non-standard keywords in parser and disassembler

[MSDN-WhiteKnight]

• Tokens that seem to be used as keywords in implementation: aggressiveinlining, uint8, uint16, uint32, type (Fixed on GitFlic: ea8e39)
• Windows ilasm & ildasm use winapi instead of platformapi

CilTools.Tests.Common.il(4103) : error : syntax error at token 'platformapi' in: .method public hidebysig static pinvok
eimpl("user32.dll" lasterr platformapi ) bool ShowWindow(

***** FAILURE *****

CilTools.Tests.Common.il(8814) : error : syntax error at token 'type' in: class [mscorlib]System.Type type,

***** FAILURE *****