REST service to provide full content of a specified Rasa regex

[turnerrainer]

AS AN Architect I WANT TO have a REST service to fetch the full content of a specified Rasa regex SO THAT there wouldn't be any duplicate services for it

Acceptance Criteria

• [x] Use POST endpoint /rasa/regex with a POST parameter as an input
• [x] Use regex section of Rasa data/regex_nlu.yml as input
• [x] When using examples=true as an input POST parameter, the output provides full content, including examples
• [ ] When using examples=false as an input POST parameter, only a list of appropriate files with intent names is returned
• [ ] By default, examples=false is used

Examples

Sample input

version: "3.0"
nlu:
- regex: asukoht
  examples: |
    - abja[- ]paluoja
    - antsla
    - elva
    - haapsalu

Output for requesting "asukoht" as an input

examples=false

true

examples=true

{
  "asukoht": ["abja[- ]paluoja", "antsla", "elva", "haapsalu"]
}

[turnerrainer]

@janyprus please link this issue with an appropriate pull request.

[janyprus]

Pull request #154

[ffrose]

Bug described under task #107. Can start testing when it gets fixed.

[ffrose]

Works as intended.