Update wx shape syntax

[CagtayFabry]

Changes

remove the : syntax option from wx_shape

Related Issues

as mentioned here

Checks

• updated CHANGELOG.md
• updated tests
• updated doc/

[codecov]

Codecov Report

Merging #537 (c5620c1) into master (5e9e6d7) will not change coverage.
The diff coverage is 100.00%.

❗ Current head c5620c1 differs from pull request most recent head a0ac4f5. Consider uploading reports for the commit a0ac4f5 to get more accurate results

@@           Coverage Diff           @@
##           master     #537   +/-   ##
=======================================
  Coverage   95.12%   95.12%           
=======================================
  Files          93       93           
  Lines        5641     5641           
=======================================
  Hits         5366     5366           
  Misses        275      275           

Impacted Files	Coverage Δ
weldx/asdf/validators.py	99.32% <100.00%> (ø)
weldx/asdf/file.py	97.69% <0.00%> (ø)

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 7065612...a0ac4f5. Read the comment docs.