Title Block text variables are embedded into the pcb file and should
be used for resolving when the project file is missing
(cherry picked from commit d1bf889e71)
Allow falling back to the alternate variable definitions if the built-in
text block variables are not set.
Also push the project into variable resolution when plotting
Fixes https://gitlab.com/kicad/code/kicad/issues/11168
ADDED CURRENT_DATE titleblock token (to go with existing ISSUE_DATE)
ADDED PROJECTNAME schematic token (to go with FILENAME and SHEETNAME)
Converts other parameters to project text variables.
- remove ${COMMENT0}, that was broken (returned the same as ${COMPANY}.
- So ${COMMENT1} to ${COMMENT9} are only recognized for Comment1 to Comment9
in page settings dlg, and are equivalent to our old %C0 to %C8 format string
- fix a minor coding style issue.
Fixes#7642https://gitlab.com/kicad/code/kicad/issues/7642
This moves the program-specific code (e.g. BIU files) into
the program tests.
Also, create title_block.cpp to break a dependency that pulled
in eda_text.cpp when using the TITLE_BLOCK object.