Enable extensions for REPL

[l46kok]

This allows the usage of all extensions in REPL.

Example:

cel-repl> %option --extension 'strings'
cel-repl> 'hello world'.substring(6)
world : string

Available extension options:

%option --extension 'strings'
%option --extension 'math'
%option --extension 'protos'
%option --extension 'encoders'
%option --extension 'all' (adds all 4 above)

[jnthntatum]

can you check on the cloud build failure? maybe the build files need to be fixed.

[l46kok]

PTAL

[TristonianJones]

@l46kok as a convenience could you add --extension 'all'

Also, is it possible to disable the extensions once set?

[l46kok]

@l46kok as a convenience could you add --extension 'all'

Also, is it possible to disable the extensions once set?

Done

The extensions can be disabled by %reset, which resets the environment to initial state.