Implementing save_selection and small change in Components API

[germa89]

Main changes:

• Implementing save_selection context manager. This context manager takes care to save the current selection (ENTITIES, nodes, elements, kps, lines, areas, and volumes). The entities selection wasn't taking into account before (bug), for instance in mapdl.vplot (See Plot command deletes component names (named selections/cm) #2452).
• Adding components.select to easier select many components.
• Changing name to Components.list .. it returns a tuple. Now it is Components.names
• Making some methods, properties. For instance Components.names() and Components.types

Close #2452

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[codecov]

Codecov Report

Merging #2454 (122eb47) into main (1fe9f79) will decrease coverage by 0.01%.
Report is 7 commits behind head on main.
The diff coverage is 90.19%.

@@            Coverage Diff             @@
##             main    #2454      +/-   ##
==========================================
- Coverage   88.09%   88.08%   -0.01%     
==========================================
  Files          44       44              
  Lines        8603     8613      +10     
==========================================
+ Hits         7579     7587       +8     
- Misses       1024     1026       +2