`#if PLATFORM_WINDOWS` doesn't work for some reason.

Fix suggested by @beqabeqa473

So we know they are just tables, get protected from overflows, and get shared between processes

because it is not stored in a single place.

Signed-off-by: golubovsky <[email protected]>

Option --load makes espeak-ng consider the voice name provided a name of
a file relative to the current directory.

Signed-off-by: golubovsky <[email protected]>

Prevents a segfault.

See issue #8, https://github.com/espeak-ng/espeak-ng/issues/8

There might still be some ints that could be changed to boolean.

Possible regressions in fifo.c:
int fifo_is_busy() and int fifo_is_command_enabled() used to return an int. Now they return a boolean. This might cause problems on systems where stdbool true/false is something else than 1/0.

Patch by https://github.com/ChliHug.

Moved include/espeak/speak_lib.h to include/espeak-ng/speak_lib.h and
created a symlink from the original location.

Added support for line-by-line input reading from unix FIFOs.

This makes the espeak-ng.c and speak-ng.c source code easier to
read and maintain. It also addresses bugs in command-line argument
parsing with the espeak implementation, for example it treats
`--compile-phonemes` as `--compile` due to an argument matching bug.

This reverts commits 0cc0300328 to
38d15f8f90.

The 0cc03003 commit breaks MBROLA voice support. As such, there
may be other breakages in those commits.