Added support for more brahmic schemes

Schemes

Brahmic Schemes

• ahom
• assamese
• avestan
• balinese
• bengali
• bhaisuki
• brahmi
• brahmi_tamil
• burmese
• chakma
• cham
• devanagari
• dogra
• gondi_gunjala
• gondi_masaram
• grantha
• grantha_pandya
• gujarati
• gurmukhi
• javanese
• kannada
• khamti_shan
• kharoshti
• khmer
• khom_thai
• khudawadi
• kolkata
• lao
• lao_pali
• lepcha
• limbu
• mahajani
• malayalam
• manipuri
• marchen
• modi
• mon
• mro
• multani
• newa
• ol_chiki
• oriya
• persian_old
• phags_pa
• ranjana
• rejang
• rohingya
• shan
• sharada
• siddham
• sinhala
• sora_sompeng
• sundanese
• syloti_nagari
• tagalog
• tagbanwa
• tai_laing
• takri
• tamil
• tamil_extended
• tamil_superscripted
• telugu
• thai
• tibetan
• tirhuta_maithili
• urdu (Abjad)
• vattelutu
• wancho
• warang_citi

Roman Schemes

• hk (Harvard-Kyoto)
• iast (International Alphabet of Sanskrit Transliteration)
• itrans (ITRANS)
• itrans_dravidian (ITRANS with support for Dravidian short "e" and "o")
• kolkata (National Library at Kolkata)
• slp1 (Sanskrit Library Phonetic Basic)
• velthuis (Velthuis)
• wx (WX)
• cyrillic