getKerning
Fetches the Kerning between two codepoints.
Return
the kerning between the two codepoints if it exists; otherwise null
Parameters
first
the first codepoint of a character
second
the second codepoint of a character
Fetches the Kerning between two codepoints.
the kerning between the two codepoints if it exists; otherwise null
the first codepoint of a character
the second codepoint of a character