Introduce a shortcut method to set tab ordering and use it in
the dialogs that override the tab traversal orders:
* Eeschema sheet properties
* Pcbnew Move exact
* Pcbnew Move relative
Also set some initial focus fields in the same dialogs.
Tidy a few includes.
Fixes: lp:1816009
* https://bugs.launchpad.net/kicad/+bug/1816009
Use standard Magnetize() to handle grid and magnetic pads.
Use the standard menu from PCB_TOOL. Delegating the menu to
the SELECTION_TOOL just caused grief.
Also brings clients (such as Position Relative To) into line,
and implements better Cancel behaviour.
Also improves visibility of modal status messages:
- moves Select Anchor message from status bar to popup
- moves Select Reference message from dialog to popup
Fixes: lp:1786727
* https://bugs.launchpad.net/kicad/+bug/1786727
This patch enables math expression evaluation for most of the text input
controls in pcbnew.
NEW: pcbnew text input controls are able to evaluate simple
mathematical expressions, including distance units (e.g. 5.0+(2*1.2mm)).