Strip tests from numpy and pandas

[mcous]

Overview

This PR attempts to alleviate #144 by encoding something that we've been doing frequently during development into the production builds: strip various tests directories from numpy and pandas prior to creating a system image.

This should save about:

• Pandas: 7.0M
• Numpy: 2.5M
• Total: 9.5M

PR should be rebased and merged to preserve commit messages.

Notes

• Stripping test files is now a configurable option for both Pandas and Numpy
  • Language: positive - "include test files"
  • Default: no - strip files by default
• Conventions and settings inspired by other packages that do the same sort of thing
  • package/samba4/Config.in
  • package/python-pygame/Config.in

[SyntaxColoring]

If we put this fixup in package/, it seems like they will be prone to being accidentally overwritten if/when we update these packages from upstream. Should we leave comments saying that they're purposeful Opentrons additions, meant to work around filesystem space problems in /board/opentrons/ot2?

[sfoster1]

If we put this fixup in package/, it seems like they will be prone to being accidentally overwritten if/when we update these packages from upstream. Should we leave comments saying that they're purposeful Opentrons additions, meant to work around filesystem space problems in /board/opentrons/ot2?

Honestly we should

• Make these gated by Config.in flags
• Try and upstream them

[mcous]

Results of ./utils/diffconfig

❯ ./utils/diffconfig
+BR2_PACKAGE_PYTHON_NUMPY_TESTS n
+BR2_PACKAGE_PYTHON_PANDAS_TESTS n

[mcous]

Results of robot testing. Going to merge to unblock #151

• numpy: 2.5M
• pandas: 7.1M

edge

# du -hs numpy
11.7M	numpy
# du -hs pandas
24.4M	pandas

This PR

# du -hs numpy
9.2M	numpy
# du -hs pandas
17.3M	pandas