Add basic Javascript SDK support

[jfiala]

see also issue #1294 "Document client SDK"

Add basic Javascript SDK support

(based on the Java templates):

• Allow to generate model classes
  • including comments
  • including property-level comments + type hints
  • including getters & setters + comment type hints
  • generate inline Enumeration classes to allow Enumeration usage
  • add required parameters to default constructor
  • add .toJson() to print complete model including nested models
• Allow to generate API classes
  • including comments
  • including JSDoc for params & return
• Allow for both AMD + plain JS usage

[jfiala]

Only added new class "JavascriptClientCodegen", but it seems all classes implementing CodegenConfig are tested using their name.

However, I ran it using the full class invocation:
-l io.swagger.codegen.languages.JavascriptClientCodegen

The shorthand "javascript" didn't work:
-l javascript

Please advise how to add a new language only by implementing interface CodegenConfig without breaking the tests.

[wing328]

@jfiala thanks for the PR to add Javascript SDK :)

To add a new language, please add the following line to modules/swagger-codegen/src/main/resources/META-INF/services/io.swagger.codegen.CodegenConfig:

io.swagger.codegen.languages.JavascriptClientCodegen

I did a test and no longer see the same error after adding the line above.

[jfiala]

added configuration entry in io.swagger.codegen.CodegenConfig, however it could be picked up automatically as it implements the interface CodegenConfig

The shorthand -l javascript is working now.

[wing328]

Agree with you that ideally it should be picked up automatically.

[wing328]

@jfiala thanks again for your contribution of the JS SDK. I'm sure the community would appreciate your effort 🍻