Add phonetic alphabet glyphs

ascript, ascriptacute, ascriptgrave,
aeacute, aegrave,
oopen, oopenacute, oopengrave,
schwa, schwaacute, schwagrave,
schwahook, schwahookacute, schwahookgrave,
eopen, eopenacute, eopengrave,
dotlessj, eng, obar,
vturn, vturnacute, vturngrave,
ezh, esh, length