NEW: A text entry allows adding signals by name. This includes vectors
not in the signal list, which is useful for plotting calculated vectors
like `let AB=V(a)*V(b)`. It's also a faster way to add a signal if you
know its name already.
Fixes: lp:1851373
* https://bugs.launchpad.net/kicad/+bug/1851373
Net names in eeschema that include '/' are escaped ('/' replaced by "{slash}")
Escaped netnames are only for internal use, and must be unescaped in spice netlist and dialogs.
Setfocus now works on macos dialogs by setting DLGSHIM_USE_SETFOCUS.
This option is only enabled __WXMAC__ is defined.
FixOSXCancelButtonIssue() is now called inside DIALOG_SHIM::SHOW.
All other calls from within the dialogs were removed.
Jonatan Liljedahl
jean-pierre charras
Maciej Suminski
Diogo Condeco