Changes:
* fetch pymisp version from submodule, remove erroneous module from additional dependencies
* fix heredoc indentation, move files dist and permission to same layer to avoid duplicating
* fix cybox addition, codecov removal
* pinned pip versions for our own imports
* size optimization by applying the intended file permissions from later step in initial copy
* bind-mount wheels to reduce image size
* fix var init, rework py module add script to require version and only overwrite when we have a version defined
* handle missing MISP/MODULES_TAG in env
* remove git package and (almost all of) .git directory
* split MISP and PyMISP steps to allow faster iteration in module step
Øivind Hoel