[RFE] Add AS3/DO examples to TS examples tree

[DumpySquare]

User would like to see all available examples for AS3/DO/TS in the "TS Examples" view.

• Rename it from "TS Examples" -> "Example Declarations"
• Setup parent item for each type (AS3/DO/TS)
• Each parent would expand to show all example declarations for that type

DO examples are available for this now, so this work is in progress.

Submitted the following AS3 issue to get a single folder for examples, will add once available:

• Provide as3 examples folder like do/ts #280
  • https://github.com/F5Networks/f5-appsvcs-extension/issues/280

[DumpySquare]

Code has been updated to accommodate this, just waiting for the repo/url for as3 to close

[DumpySquare]

functionality added in v2.0, released today

[DumpySquare]

need to keep this open for visibility since we are still waiting on the as3 examples