[V3 Setup] Overhaul backend conversion process through setup scripts (#2579)

* swap to click for setup

* Initial changes

* expose some stuff to allow for per-driver optimizations

* overwrite base config

* add red log

* add one print juuuust in case

* fix this

* thanks kowlin

* damn

* oops

* fix thing

* partial commit

* Working mongo -> json conversion, it sucks tho

* remove unused line

* Wrote initial optimized json importer

* optimized json importer

* remove useless line

* update mongo to json converter

* lets try writing the correct entry

* oops

* style fix

* add some garbage data filters going from old mongo to json

* ignore garbage data in mongov2 conversions

* simplify code a bit and add a completion message

* missed one

* Update pipfile lock

* Lock click version

setup.cfg

@@ -32,6 +32,7 @@ install_requires =
     async-timeout==3.0.1
     attrs==18.2.0
     chardet==3.0.4
+    click==7.0
     colorama==0.4.1
     distro==1.4.0; sys_platform == "linux"
     fuzzywuzzy==0.17.0
@@ -86,7 +87,7 @@ test =
 [options.entry_points]
 console_scripts =
     redbot=redbot.__main__:main
-    redbot-setup=redbot.setup:main
+    redbot-setup=redbot.setup:cli
     redbot-launcher=redbot.launcher:main
 pytest11 =
     red-discordbot=redbot.pytest