Py-espeak-ng

updated languages:

* om (Oromo)

* Added the NVDA voice variants.
* Do not crash if `espeak_SetPunctuationList` is called with a NULL
punctuation list.
* Fix a segfault in `GetTranslatedPhonemeString`.

new languages:

* om (Oromo)

build:

* Support the `--with-async` configure option.
* Support the `--with-sonic` configure option.
* Support the `--with-mbrola` configure option.
* Support the `--with-klatt` configure option.
* Support the `--with-sada` configure option.
* More build improvements.

* Converted the build to use autotools.

* Support building all the voice dictionaries.
* More build improvements.

* Initial build changes to make it easier to build espeak on POSIX systems.