Features/537 better inclusion of license file

[bhagemeier]

Description

This PR changes several two aspects of installing and using HeAT.

1. get rid of README.md and LICENSE files in the install root / PREFIX
2. make the already packaged data sets available as a package resource

Issue/s resolved: #537

Changes proposed:

Type of change

• Bug fix
• New feature

Memory requirements

n/a

Performance

n/a

Due Diligence

• All split configurations tested
• Multiple dtypes tested in relevant functions
• Documentation updated (if needed)
• Updated changelog.md under the title "Pending Additions"

Does this change modify the behaviour of other functions? If so, which?

no

skip ci

[codecov]

Codecov Report

Merging #894 (5c9a0aa) into master (d450103) will decrease coverage by 4.44%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master     #894      +/-   ##
==========================================
- Coverage   95.49%   91.04%   -4.45%     
==========================================
  Files          64       64              
  Lines        9535     9535              
==========================================
- Hits         9105     8681     -424     
- Misses        430      854     +424     

Flag	Coverage Δ
gpu	?
unit	91.04% <ø> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
heat/optim/dp_optimizer.py	24.19% <0.00%> (-71.89%)	⬇️
heat/core/devices.py	86.66% <0.00%> (-11.12%)	⬇️
heat/nn/data_parallel.py	84.13% <0.00%> (-10.35%)	⬇️
heat/cluster/spectral.py	85.71% <0.00%> (-8.58%)	⬇️
heat/core/communication.py	89.90% <0.00%> (-6.86%)	⬇️
heat/core/tests/test_suites/basic_test.py	91.26% <0.00%> (-4.86%)	⬇️
heat/core/linalg/qr.py	97.30% <0.00%> (-2.70%)	⬇️
heat/utils/data/partial_dataset.py	92.30% <0.00%> (-2.06%)	⬇️
heat/core/linalg/basics.py	93.48% <0.00%> (-1.41%)	⬇️
heat/core/rounding.py	95.95% <0.00%> (-1.02%)	⬇️
... and 6 more

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[coquelin77]

very cool. thanks for the fix

[coquelin77]

this is only failing because the CI is not running on the GPUs. However, this PR does not do any calculation, thus it does not require the tests to run there. I will merge this