[BUGFIX] Use proper extension signature in generated TS

Fixes: #7
[TASK] Add bulk syntax check commands to SyntaxService
[FEATURE] ExtensionUtility
[FEATURE] Backend module

First version contains only syntax checking.
[TASK] Remove debug statement
Merge pull request #10 from NamelessCoder/module

[FEATURE] Backend module
[TASK] Add missing minor number in minimum required core version