Correct text case usage in local FindXXX.cmake and CMakeLists.txt files.
During usage, warning messages appear due to differences in file name/library name case.
Resolution is to match file name case with variable name case where it appears in all CMake files.
i.e. file name - QCustomPlot.cmake
variable name QCustomPlot_{LIBRARIES, INCLUDE_DIRS, et al}
Affects CMakeLists.txt and cmake/FindXXX.cmake files.
From upstream source, QHexEdit is intended to be a modular widget
for Qt5. (README @ https://github.com/Simsys/qhexedit2)
Add ability for platforms that already have QHexEdit installed to
build DB4S against installed (external to DB4S) QHexEdit library.
Current version of library available is consistent with version
contained in DB4S project `libs` folder.
(see https://repology.org/project/qhexedit2/versions)
Default of CMake flag FORCE_INTERNAL_QHEXEDIT is ON (enabled) so
as to minimize impact to current development workflow and other
platforms. Using flag is left as an option to package managers.
Scott Furry