Implementation of context objects accessible at JiT compilation stage for supported action types.

They expose access to adapter/data and context methods, equivalent to AoT context, but with a more restrictive selection of resolvable targets.

Add file_paths field to pass accessible file
paths at JiT compilation stage.

Bumps [lodash](https://github.com/lodash/lodash) from 4.17.21 to 4.17.23.
- [Release notes](https://github.com/lodash/lodash/releases)
- [Commits](lodash/lodash@4.17.21...4.17.23)

---
updated-dependencies:
- dependency-name: lodash
  dependency-version: 4.17.23
  dependency-type: indirect
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Bumps [diff](https://github.com/kpdecker/jsdiff) from 3.5.0 to 8.0.3.
- [Changelog](https://github.com/kpdecker/jsdiff/blob/master/release-notes.md)
- [Commits](kpdecker/jsdiff@v3.5.0...v8.0.3)

---
updated-dependencies:
- dependency-name: diff
  dependency-version: 8.0.3
  dependency-type: indirect
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

* JiT Contexts - Add original request & simplify constructor

Simplify constructor by explicitly passing and exposing
the orignal compilation request (which already contains
most of required data).

* JiT compilation stage implementation

Implement JiT compilation stage in Core:
 - a new entry point jitCompiler(rpcCallback), which instantiates a
single compile method, performing a compilation against a supplied
RPC implementation.
 - table/operations/incremental table context(s) construction and
invocation of the JiT code.

* Support both 'yaml' and 'yml' file extensions

We can support both formats in Dataform. 

Native configurations are stored in YAML format, but other configurations eg. from extensions might use YML too.

* Support both 'yaml' and 'yml' file extensions

We can support both formats in Dataform.

Native configurations are stored in YAML format, but other configurations eg. from extensions might use YML too.

* Support both 'yaml' and 'yml' file extensions

We can support both formats in Dataform.

Native configurations are stored in YAML format, but other configurations eg. from extensions might use YML too.

* Reorganize imports in compilers_test.ts