Create a file based translation - rather than the current line based

[krisgesling]

Is your feature request related to a problem? Please describe.
For anyone translating Skills the existing method assumes they are translating each line of a file. This does not always work, and limits the non-english language to have the same number of lines in each file as the english version.

This has come up many many times over the years:

Describe the solution you'd like
Ultimately we want a system where any language group can freely translate a Skill into their own language without being encumbered by the implementation of the original.

Because of the structure of Skills, each file still needs to perform a specific function. So one option would be to switch to a file based system instead of a line based one.

Describe alternatives you've considered
Many... if you're interested nudge me and we'll try to expand this further.

Additional context
PR's stuck in limbo for years because of this:

• Improved german translation skill-alarm#53
• Added more natural way for germans to ask for the time skill-date-time#36

[krisgesling]

Maybe related - maybe different - definitely still an issue.
MycroftAI/skill-date-time#81