Undo/redo selecting/unselecting entities and add an option to disable that behavior

[vincentfretin]

@kfarr in #789 (comment) said:
I think selecting/unselecting entities is one of the highest priorities. It can be useful for both ai or multi-user as a selection event is important as a form of communication. Selection / deselection of layers in the undo stack is default behavior in figma, it is worth noting that some users don't seem to like it: https://forum.figma.com/t/user-preference-to-include-or-exclude-object-selection-in-undo/5333/22

@vincentfretin's note:
We would need to exclude from the undo stack the selectEntity calls that are done in execute and undo functions in the existing commands.