Going through files in src/libespeak-ng/, include-what-you-use removed a
few unnecessary includes and included explanations on why a certain
header should be included. This makes tracking globals and dependencies easier.

Running the codebase through IWYU should be repeated after each major
code restIncludes to standard c library weren't checked to avoid
breaking builds with other platforms.

See https://github.com/include-what-you-use/include-what-you-use

SetSynth_Klatt() was using wvoice in two ways:
1) global wvoice was used directly
2) global wvoice was also passed in Wavegen_Klatt() as an argument "v"

Now the code only uses the function argument wvoice

Contributes to #68.

Contributes to #68.

Wavegen_Klatt2() only had one if-statement and then called
Wavegen_Klatt(). Wavegen_Klatt() was never called directly.

This makes the codebase more consistent. Including speech.h is not necessary anymore in some files. Includes have been removed.

The libespeak files are supposed to be C code, so use C linkage
for all the functions defined in that code when they are being
referenced in the C++ code (i.e. espeakedit).

Indian languages: change [t.#].
lang=hy,: Change letter names.
Add voice variant Klatt4 with a sawtooth voicing waveform.
Fix problem in 1.47.10a with 'kr' and 'pr' in some languages.


git-svn-id: https://espeak.svn.sourceforge.net/svnroot/espeak/trunk@357 d46cf337-b52f-0410-862d-fd96e6ae7743

git-svn-id: https://espeak.svn.sourceforge.net/svnroot/espeak/trunk@234 d46cf337-b52f-0410-862d-fd96e6ae7743

Fix: -g command option not working on Windows.
Fix: Text position value in events was limited to 16 bits.

[1.40.15]
espeakedit:  Change formant dialog to include Klatt parameters.
espeakedit:  Change the format of formant data to include Klatt parameters.
espeakedit:  Fix the frequency of F7,F8 at 7800Hz,9000Hz.


git-svn-id: https://espeak.svn.sourceforge.net/svnroot/espeak/trunk@220 d46cf337-b52f-0410-862d-fd96e6ae7743

Added experimental Klatt synthesizer.
Klatt phonemes use a new format of phoneme data.
espeakedit, new dialog fields and layout for Klatt phonemes.
Added Klatt versions of English phonemes.

Fixed some compilation warnings on Windows.
Fixed bug in Lettergroups > L10

Increased amplitude of harmonics below F1 peak, to increase bass.
Allow 5 (up from 4) pairs of values in "tone" command in voice files.
Default to slightly wider pk_shape1.

If words are separated by hyphens, don't add word-gap, and don't pass new-word flag onto phoneme processing.


git-svn-id: https://espeak.svn.sourceforge.net/svnroot/espeak/trunk@203 d46cf337-b52f-0410-862d-fd96e6ae7743