These are some improvements to the german voices, both default and mbrola. It fixes some sounds of phonemes and also pronunciation of words. I also modified the mbrola phoneme and voice files to make them sound more natural. The stressLength setting is that it matches the way espeak deals with the lengths.

Add ar1 mbrola support
Modify ar2 mbrola support

Folder Myanmar renamed to myanmar to make similar with others
Fixed configuration file
Fixed my_rules file to make them compile

Supporting phoneme-based voices in espeak-ng is currently complex,
and has issues that need to be fixed in the core code before
adding support for them.

These are causing problems with several of the voices.

Revert "ipa: n (vcd alv nas)." commit 8869c72d97.
Revert "ipa: m (vcd blb nas)." commit 581b366bb0.
Revert "ipa: ɳ (vcd rfx nas)." commit 7cc3a6c0c2.
Revert "ipa: ɲ (vcd pal nas)." commit eda7bc03d6.
Revert "ipa: ŋ (vcd vel nas)." commit efeca3b275.
Revert "ipa: document the supported pulmonic consonants in ph_ipa as an IPA chart."
       commit 675cec2fac.
Revert "ipa: ɹ (vcd alv apr)." commit 0f41dae8e9.
Revert "ipa: t (vls alv stp)." commit a49729cd70.
Revert "ipa: ensure that each phoneme has an ipa annotation."
       commit 3cdb952ea3.
Revert "ipa: t̪ (vls dnt stp)." commit dd30a61186.
Revert "ipa: d (vcd alv stp)" commit a96f748470.
Revert "ipa: d̪ (vcd dnt stp)" commit 39f7e7b2f6.
Revert "ipa: d͡ʒ (vcd pla sib afr)" commit 16be8f19bf.
Revert "ipa: d͡ʑ (vcd alp sib afr)." commit 883187cfb5.
Revert "ipa: ɟ (vcd pal stp)." commit 2e682bcdc5.
Revert "ipa: g (vcd vel stp)." commit 679b939474.
Revert "ipa: b (vcd blb stp)." commit fb6bd384ee.
Revert "ipa: j (vcd pal apr)." commit 1d36966b9f.
Revert "ipa: w (vcd ptr vel apr)." commit efade0fc71.
Revert "ipa: β (vcd blb frc)." commit 063ee44a4f.
Revert "ipa: v (vcd lbd frc)." commit 3374b13ad6.
Revert "ipa: ʋ (vcd lbd apr)." commit 0a55fe6ad4.
Revert "ipa: fix the 'Other Symbols' table."
       commit 440fb6d4bb.
Revert "ipa: ð (vcd dnt frc)." commit 6eb518ee0f.
Revert "ipa: d (vcd alv frc)." commit 0574f488c3.
Revert "ipa: ʒ (vcd pla frc)." commit 7312b1b2a2.
Revert "ipa: ʐ (vcd rfx frc)." commit dc937cf1de.
Revert "ipa: ʑ (vcd alp sib frc)." commit 8b55428ece.
Revert "ipa: ʝ (vcd pal frc)." commit 736fa69471.
Revert "ipa: ɣ (vcd vel frc)." commit 237af08312.
Revert "ipa: ʁ (vcd uvl frc)." commit 09601af6f5.
Revert "ipa: t͡ʃ (vls pla sib afr)" commit d170b0c024.
Revert "ipa: t͡ɕ (vls alp sib afr)" commit 88bdbe9256.
Revert "ipa: c (vls pal stp)" commit e836376922.
Revert "ipa: q (vls uvl stp)" commit 695a9007aa.
Revert "ipa: l (vcd alv lat apr)." commit a5e5202ca5.
Revert "ipa: ɫ (vcd alv fzd lat apr)." commit 217eceeb34.
Revert "ipa: ɭ (vcd rfx lat apr)." commit b7428eb443.
Revert "ipa: ʎ (vcd pal lat apr)." commit 74c3ff5c97.
Revert "ipa: ʟ (vcd vel lat apr)." commit 9796200f26.
Revert "ipa: p (vls blb stp)." commit 302decc882.
Revert "ipa: k (vls vel stp)." commit d4a2846837.
Revert "ipa: f (vls lbd frc)." commit 175d3c0299.
Revert "ipa: θ (vls dnt frc)." commit d2a04674e8.
Revert "ipa: s (vls alv sib frc)." commit ce810f3cd8.
Revert "ipa: ʃ (vls pla sib frc)." commit dce61376d8.
Revert "ipa: ʂ (vls rfx sib frc)." commit 1135ff1013.
Revert "ipa: zʲ (vls alv sib frc pzd)." commit d8aa055697.
Revert "ipa: sʲ (vls alv sib frc pzd)." commit e51dc6e61a.
Revert "ipa: ɕ (vls alp sib frc)." commit cc7127d26e.
Revert "ipa: ɬ (vls alv lat frc)." commit e338295e19.
Revert "ipa: ç (vls pal frc)." commit f05a32bf0f.
Revert "ipa: x (vls vel frc)." commit c88c43eecc.
Revert "ipa: χ (vls uvl frc)." commit 5cb8ce12bd.
Revert "ipa: h (vls glt frc)." commit 98355a0f47.
Revert "ipa: t͡s (vls alv sib afr)." commit dd66fe41e3.
Revert "ipa: t͡s (vls alv sib afr)." commit 2c45f60588.
Revert "ipa: d͡z (vcd alv sib afr)" commit 1cd9bf80b3.
Revert "ipa: ʍ (vls ptr vel frc)" commit 923bfdb82c.
Revert "base1: Restore the original eSpeak definitions for /l/. The ipa table versions are causing issues."
       commit 299c91aca1.