python3 compatibility

BOM-398

adding speech output for completion checkmarks

The 2.3.0 ORA-2 release did not regenerate .min.js
files, so the changes did not appear on Stage or
Production.

EDUCATOR-4635

Add experimental api endpoint for mobile upsell experiment, more unit tests coming soon

PROD-662

PROD-670

Minor fixes for blockstore runtime

The ora2 upgrade increases the assignment upload
limit from 10MB to 20MB.

Due to a request from a Master's partner who reports
that the current 10MB limit is not enough for their
degree programs.

EDUCATOR-4635

The reverted commit did not make the intended change.

This reverts commit 7e928ade.

ENT-2230 Fix import errors by adding __init__.py file

update bulk grades version

Feanil/fix jenkins tests in python 3

See https://github.com/edx/edx-platform/pull/21511#pullrequestreview-285556560
for more context.

BOM-429 | decoding for CSV response

ENT-2230 Upgrade edx-enterprise to 1.9.12

BOM-447 | Updates for TypeError in Python 3

BOM-442 | Response decoding for RssProxyViewTests

BOM-423 | Fixes for Python 3 decoding

These tests essentially duplicate the logic for how the pytest commands
are generated and then compare the duplicated logic to the original
logic.  This is pretty brittle and since we're running all the variants
here pretty regularly I think we have other ways of knowing if we caused
the command to break.

I don't think these tests are providing sufficient value to merit their
added complexity.

Photo verification Fixing python3

Due to a request from a Master's partner who reports
that the current 4MB limit is not enough for their
degree programs.

EDUCATOR-4635

Photo verification Fixing python3

The proctoring app assumes that this setting exists and so we get an
attribute error at runtime if it doesn't.  In python 2 this was not an
issue but because of the change in how exceptions are handle for getting
attributes, it's a problem in python 3.

The correct thing to do would be to fix this in the proctoring app so
that it checks for the existence of its value before using it but that's
a longer cycle to make/deploy that change so doing this as a stopgap to
get past it.

BOM-133

Feanil/fix more test collection issues

Fix i18n extract command.

python3 tests failures.