words like ножи, персонажи, напиши, покажи.

[This removes the warning that this app may not be compatible because it
was developed for an older
android-version.](https://developer.android.com/about/versions/10/behavior-changes-all#low-target-sdk-warnings)
Also, this adds support for signature scheme v2 and v3 [which reduces
the attack surface along with other
benefits](https://source.android.com/docs/security/features/apksigning#v1).
Lastly this adds 64-bit support for the APK, so this app can be
installed on 64-bit-only hardware.

LoadConfig() should be refactored to support both voice and language options set
in LoadVoice() and LoadLanguageOptions().

Code checked for both langopt LOPT_IT_DOUBLING and attribe $double.
LOPT_IT_DOUBLING is redundant. $double already has a test in
dictionary.test

Code had a check for tr->langopts.param[LOPT_IT_DOUBLING] & 2 but that bit value is
not used in any language. That logic was removed.

previous changing of variable names caused an error in the program logic.

Caused when creating LoadLanguageOptions().

Accidentally commented out in ac82698f.

Loading Voice and Language options is complicated. They are not
separated in the code.

This PR creates langopts.c for holding language option related
configuration. In the future:
1. all new language options should go to langopts.c
2. voice options should have a similar file
3. LoadVoice should know if it's loading a voice or a language.

These have no tests and should be refactore to be similar to other
langopts.

Note: This feature has no tests.

Note: This feature has no tests. It doesn't look very useful and I think
could be removed.

We currently have two switch statements. Every key should go to only one
of them.

The switch case in LoadVoice() currently mixes voice and language
options. This change will start separating them into two functions.

CheckTranslator will be moved to langopts.c. In the future there should
be no need to use it in voices.c. There will be other temporary
solutions also.

This removes these words from dictionary and uses translation rules
instead. Result is to shorten the i.

See #1337 and #1388.