This fixes an attempted fix for diram size calculation where it was counted twice, however the fix did not account for cases where iram was not fully filled with cache and therefore was of non 0 size.
Now the calculation should be correct regardless of the cache size.
Closes https://github.com/espressif/esp-idf/issues/9960
This adds CSV support to idf_size.py and idf.py size actions and using the --format argument which accepts 'text', 'json' or 'csv' as input.
idf_size.py --json argument is deprecated but left to avoid a breaking change.
For idf.py size actions OUTPUT_JSON environment variable set at configuration time is overriden at target build time if --format is used.
Additionally, this commit refactors big parts of code, unified usage of json_dict and manually generated dictionaries for textual output and improves code quality in many parts.
