add DF / latex table output for MPL properties

[codecov[bot]]

Codecov Report

Merging #60 (6299ecd) into master (fa71e40) will decrease coverage by 3.63%. The diff coverage is 21.13%.

@@            Coverage Diff             @@
##           master      #60      +/-   ##
==========================================
- Coverage   68.95%   65.33%   -3.63%     
==========================================
  Files          22       23       +1     
  Lines        1498     1621     +123     
==========================================
+ Hits         1033     1059      +26     
- Misses        465      562      +97     

Impacted Files	Coverage Δ
ogs6py/ogs.py	54.43% <4.25%> (-11.43%)	:arrow_down:
ogs6py/classes/properties.py	75.00% <75.00%> (ø)
ogs6py/classes/__init__.py	100.00% <100.00%> (ø)