Introduce Runtime.Context and methods to manipulate it

[JaroslavTulach]

According to the PR-55 specification there shall be:

type Runtime.Context
    Input
    Output

  if_enabled : Function -> Text -> Any
  if_enabled ~action environment="design" = ....

  is_enabled : Text -> Boolean
  is_enabled environment="design" = ...

and then methods to enabled/disable a context:

Runtime.with_enabled_context : Runtime.Context -> Function -> Text -> Any
Runtime.with_enabled_context context ~action environment="design" = ...

Runtime.with_disabled_context : Runtime.Context -> Function -> Text -> Any
Runtime.with_disabled_context context ~action environment="design" = ...

Together with this change disable all the checks done as a result of in Input and in Output type signatures.

[enso-bot]

Hubert Plociniczak reports a new STANDUP for the provided date (2023-03-31):

Progress: Adding tests, discovering some nuances in the design for further consideration. Preparing the PR for the review. It should be finished by 2023-04-03.

Next Day: Next day I will be working on the #6129 task. Gather feedback on the PR, add CLI support

[enso-bot]

Hubert Plociniczak reports a new STANDUP for the provided date (2023-03-30):

Progress: Following the design and introducing Context and Execution Environment It should be finished by 2023-04-03.

Next Day: Next day I will be working on the #6129 task. Continue implementing the changes according to the design.

[enso-bot]

Hubert Plociniczak reports a new STANDUP for yesterday (2023-04-03):

Progress: Gathering feedback and addressing it. Started investigating partial solution to #6027 as started by James but this one won't be easy, I believe. Some special handling of warnings that changes the default unwrapping/wrapping of self will likely be needed. It should be finished by 2023-04-03.

Next Day: Next day I will be working on the #6027 task. Gather more feedback on execution context and try to figure out a solution for #6027.