Download data and execute commented out tests (#178)

Download data and execute commented out tests (#178)

* Add: tests to CMakeLists.txt

* Disable compilation of charwidth, graphemetest and normtest because of missing getline

* Refactoring: UTF8PROC_ENABLE_TESTING default Off, move tests that don't compile on windows to NOT MSVC section, add testing to appveyor.yml

* Add: testing to travis

* Changed: flag to WIN32 because MinGW has the same problem as MSVC

* Commented out graphemetest and normtest because they fail.

* Re-added: graphemetest and normtest added missing data to the path of the text files.

* Fix: last commit was party wrong normtest failed.

* * Commented out graphemetest and normtest because they fail, because in CMakeLists is missing building of data.

* Add: mingw_static, mingw_shared, msvc_shared, msvc_static to ignore list

* Add: downloading data and executing enabled tests that depend on the downloaded data.

* Fix: windows line endings CRLF replaced with linux LF

* Refactoring: (major) set UNICODE_VERSION to 13.0.0, replace curl with file DOWNLOAD, removed downloading unnecessary files, enabled normtest.

* Fix: woodhead error in revision adeac82ec9941667e3c3ad7f50769793547218c3 readded calling execute_process to strip GraphemeBreakTest.txt file

* Add: removing no more used file data/GraphemeBreakTestOrg.txt after stripping.

* Add: testing folder to ignore list

* Add: enabled graphemetest

* Update .gitignore

Co-authored-by: Andreas-Schniertshauer <Andreas-Schniertshauer@users.noreply.github.com>
Co-authored-by: Steven G. Johnson <stevenj@mit.edu>