12% speed improvement and bug fixes.

Improved documentation and readability.
No feature changes.

• Added explanation of how to use with Swift.

• Fixed test scripts.

Added encodeLatLonToSelectedMapcode as a convenience for languages that use the C library, but have difficulties dealing with multi-dimensional arrays (like Swift).

• Added unit test for floating point error with code "40822.schol".
• Added locale support.
• Added many languages.
• Hardened unit tests.

• Updated unit test to compile with plain C and added some test cases.

• Added support for getting territory names in English and local alphabets.
• Added much improved unit test scripts to run gprof, valgrind, the CLang address sanitize
  and compare the output of the new library with and older version.

• Added scripts for Korean (Choson'gul / Hangul), Burmese, Khmer, Sinhalese, Thaana (Maldivan),
  Chinese (Zhuyin, Bopomofo), Tifinagh (Berber), Tamil, Amharic, Telugu, Odia, Kannada, Gujarati.
• Renamed constants to more correct terms (Malay to Malayalam, Hindi to Devanagari).
• Added getAlphabetsForTerritory(t), returning the most commonly used alphabets for territory t.
• Improved some characters for Arabic and Devanagari.
• Fixed Bengali to also support Assamese.
• Improved readability of implementation.
• Added conditional define option for unittest: NO_POSIX_THREADS. Add -DNO_POSIX_THREADS
  to your compiler command-line to not use pthreads.h, for example, on MSVC platforms.
• Added conditional define option library: NO_FAST_ENCODE. Add -DNO_FAST_ENCODE to your
  compiler command-line to not use the fast encoding (default is to use fast encoding). Using
  fast encoding speeds up de encoding by a factor of 2. For normal use, there is no reason not
  to use fast encoding.
• Added parseMapcodeString to get individual mapcode elements, like the territory code,
  the 'proper' mapcode (without the territory and precision extension) and the precision
  extension parsed from a (user) input string.
• Fixed bug in parseMapcodeString and compareWithMapcodeFormat.

Added Arabic support.

Removed minor warnings from CLion inspections and cleaned up README files.