[WIP] [#211,#212,#???] Virtual environment support for Python 3.8+ and some housekeeping#224

SwooshyCueb wants to merge 7 commits intoirods:4-3-stableirods/irods_rule_engine_plugin_python:4-3-stablefrom

SwooshyCueb:212-on-218.4-3-stableSwooshyCueb/irods_rule_engine_plugin_python:212-on-218.4-3-stableCopy head branch name to clipboard