Spelling corrections for src directory

Spelling corrections as found by codespell and in #561.

Some reported problems were already fixed, others are fixed here, with some exceptions (a,o.):
- "referenceby" in defgen.cpp as this is in the output and I cannot oversee the consequences (looks like none, but ...)
- "HANGEUL_CHARSET" left as is as in some MS documentation is written: 'HANGUL_CHARSET: Also spelled "Hangeul". Specifies the Hangul Korean character set.' (https://docs.microsoft.com/en-us/openspecs/windows_protocols/ms-wmf/0d0b32ac-a836-4bd2-a112-b6000a1b4fc9).

1 files changed, 1 insertions, 1 deletions

diff --git a/src/latexgen.cpp b/src/latexgen.cpp
index e6c6861..0d529ab 100644
--- a/src/latexgen.cpp
+++ b/src/latexgen.cpp
@@ -1919,7 +1919,7 @@ void LatexGenerator::endMemberDescription()
 
 void LatexGenerator::writeNonBreakableSpace(int) 
 {
-  //printf("writeNonBreakbleSpace()\n");
+  //printf("writeNonBreakableSpace()\n");
   if (insideTabbing)
   {
     t << "\\>";