Enhance Basis: Parallel evaluation

[adtzlr]

also add parallel Form argument

fixes #211

[codecov-commenter]

Codecov Report

Merging #212 (4cba8ab) into main (6b87c2d) will decrease coverage by 0.11%.
The diff coverage is 89.28%.

@@            Coverage Diff             @@
##             main     #212      +/-   ##
==========================================
- Coverage   98.35%   98.24%   -0.12%     
==========================================
  Files          62       62              
  Lines        2608     2614       +6     
==========================================
+ Hits         2565     2568       +3     
- Misses         43       46       +3     

Impacted Files	Coverage Δ
felupe/_assembly/_base.py	93.50% <ø> (ø)
felupe/_field/_axi.py	95.45% <ø> (ø)
felupe/_field/_base.py	92.30% <ø> (ø)
felupe/element/_triangle.py	100.00% <ø> (ø)
felupe/tools/_save.py	100.00% <ø> (ø)
felupe/_basis/_basis.py	85.71% <72.72%> (-14.29%)	⬇️
felupe/_assembly/_form.py	99.46% <100.00%> (ø)
felupe/mesh/_convert.py	96.39% <100.00%> (ø)
felupe/mesh/_tools.py	100.00% <100.00%> (ø)
felupe/region/_boundary.py	100.00% <100.00%> (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 6b87c2d...4cba8ab. Read the comment docs.