Fix all doxygen engine doc and also python script crashing because juce module header build/juce.h is not found

[fab672000]

and gracefully indicate that the module header (i.e. the juce dependency) is skipped.

Also adds a convenient debug launch.json vscode python config file to allow debugging python script(s). In order to use vscode to build/debug python just install in vscode the "Python" and "Python for VSCode" extensions then open a python file.

In future, we should be able to generate the modules grouping directly from source and therefore not duplicate the full source code to the build folder, this seems unnecessary and slows down significantly the documentation process. The usual approach for adding modules groups is to ask each class to add itself to a group (using the @addgroup statement) so that doxygen will automatically discover them eliminating the need for the script, while preserving complete genericity to that process.

For now keep using the script and focus of the documentation content.

[fab672000]

For legal concerns: I am aware and agree that any material improvement that I provide in this PR for the project (and also future ones if any here) can be freely used both non-commercially and commercially in accordance with the tracktion engine dual license.

[drowaudio]

Added these here: https://github.com/Tracktion/tracktion_engine/commit/7acaf7933e5b8e607a67f2dcbe4f5ab943b3cb12

[github-actions[bot]]

Unit Test Results

       3 files  ±       0         3 suites  ±0   0s :stopwatch: ±0s    154 tests +   127     154 :heavy_check_mark: +   128  0 :zzz: ±0  0 :x:  - 1  6 072 runs  +5 967  6 072 :heavy_check_mark: +5 970  0 :zzz: ±0  0 :x:  - 3 

Results for commit 7acaf793. ± Comparison against base commit 6c26c213.

[github-actions[bot]]

Performance Test Results

0 files  ±0  0 suites  ±0   0s :stopwatch: ±0s 0 tests ±0  0 :heavy_check_mark: ±0  0 :zzz: ±0  0 :x: ±0 

Results for commit 7acaf793. ± Comparison against base commit 6c26c213.