Add plot3d

[srmnitc]

Will close #160

Add a plot3d object on structures created with atomrdf. Simply calls pyiron in the background.

[codecov]

Codecov Report

Attention: Patch coverage is 12.50000% with 7 lines in your changes missing coverage. Please review.

Project coverage is 67.15%. Comparing base (4fbaf5a) to head (e4d9b29).
Report is 3 commits behind head on main.

Files	Patch %	Lines
atomrdf/structure.py	12.50%	7 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #162      +/-   ##
==========================================
- Coverage   67.27%   67.15%   -0.13%     
==========================================
  Files          25       25              
  Lines        3618     3626       +8     
==========================================
+ Hits         2434     2435       +1     
- Misses       1184     1191       +7     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.