[typescript-inversify] generates unusable code

[michalzubkowicz]

Description

typescript-inversify generates unusable code, with TypeScript warnings, also services are injected in a way that doesn't work with current version of inversify:
inversify/InversifyJS#1004 (comment)

Swagger-codegen version

2.4.9

Command line used for generation

swagger-codegen-cli.jar -l typescript-inversify

Suggest a fix/enhancement

1. Move DI classses from contructor to properties (api.service.mustache)
2. Replace type casting from <> to "as" (TS recommend that)
3. Replace == with ===
4. Remove redundant local variable basePath.
5. fix quotemarks

[HugoMario]

covered by #9786 , so closing. thanks again @michalzubkowicz for your help.