* centralize PSRAM usage (application code only)
* update logging
* update logging
* fix use after free
* initialize buffer
* free rgb_image before ussing it for new allocation
* use wrapper function
* switch log level to debug
* .
* undo adding free() calls
* .
* add names to all CImage instances
* .
* .
* .
* revert changes of stbi_image_free() with free_psram_heap() on the places where is is not in PSRAM
* .
* typos
* typo
* Added MQTT Outbox explanation/warning
* added CONFIG_SPIRAM_USE_MEMMAP explanation
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Co-authored-by: CaCO3 <caco@ruinelli.ch>