v1.020 - Minor fixes

• Glyph revisions
  • Si_Ii -(ඊ)
  • Si_E/Ee/Ai -(එ/ඒ/එෙ)
  • Si_ka -(ක)
  • Si_Ttha/Tthi/Tthii/Tth.halant/Tthu/Tthuu -(ඨ/ඨි/ඨී/ඨ්/ඨු/ඨූ)
  • Si_Ddha/Ddhi/Ddhii/Ddh.halant/Ddhu/Ddhuu -(ඪ/ඪි/ඪී/ඪ්/ඪු/ඪූ)
  • Si_Ta -(ත)
  • Si_Tha/Thi/Thii/Th.halant/Thu/Thuu/Tha.reph -(ථ/ථි/ථී/ථ්/ථු/ථූ/ථර්‍)
  • Si_Na -(න)
  • Si_Pha/Phi/Phii/Ph.halant/Phu/Phuu/Pha.reph -(ඵ/ඵි/ඵී/ඵ්/ඵු/ඵූ/ඵර්‍)
  • Si_MatraAa -(ා)
  • Si_MatraE -(ෙ)
• Various Spacing adjustments