* SEACAS: Update package.py to handle new SEACAS project name
The base project name for the SEACAS project has changed from
"SEACASProj" to "SEACAS" as of @2022-10-14, so the package
needed to be updated to use the new project name when needed.
The refactor also changes several:
"-DSome_CMAKE_Option:BOOL=ON"
to
define("Some_CMAKE_Option", True)
* SEACAS: Additional refactorings
* Replaced all cmake "-Dsomething=other" lines with either `define`
or `define_from_variant` functions.
Consolidated the application (fortran, legacy, all) enabling lines
into loops over the code names. Easier to see categorization of
applications and also to add/move/remove an application
Reordered some lines; general cleanup and restructuring.
* Address flake8 issues
* Remove trailing whitespace
* Reformat using black
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