[BUG] No option to compile with HARDSUBX using cmake

[thealphadollar]

Please prefix your issue with one of the following: [BUG], [PROPOSAL], [QUESTION].

CCExtractor version (using the --version parameter preferably) : 0.87

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Necessary information

• Is this a regression (did it work before)? [ ] NO | [ ] YES - please specify the last known working version
• What platform did you use? [ ] Windows - [X] Linux - [ ] Mac
• What were the used arguments? cmake -DWITH_HARDSUBX=ON -DWITH_OCR=ON ../src/

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Additional information

Currently there is no option to enable HARDSUBX when installing through cmake.

ccextractor/src/CMakeLists.txt

Line 4 in 3d6a9f4

Below is the output of using the above arguments:

This could be fixed by appending a new option to CMakeLists.txt. For the implementation of this new option, hints can be taken from the existing methods of enabling HARDSUBX.