1.599 Update - Include Part Improvements

For new users, the Include Parts toggles (plus icons) adds associated parts with windows, doorways and frames. When it is enabled, clicking a part in the group below will include that part instead of changing to it.
Using the swap similar shortcut "C", mouse 3 or pressing the number key will cycle through group parts to be included.

- Include parts option added for wall and floor frame

- replaced door tier selection on the build menu with regular part icons

- including deployables is now optional when using Copy or Copy Level

- changed some part key shortcuts after removing the pillar button

- extend tool now adds included parts (if toggled) for all parts with that option