Implement more soundex

[wannaphong]

Detailed description

We want to implement more Thai soundex to PyThaiNLP.

Context

List thai soundex algorithm

• A Thai Soundex System for Spelling Correction (or KSS97) paper link
• Complete Soundex for Thai Words Similarity Analysis paper link * Thai language only
• A Thai soundex system paper link

Possible implementation

We needs contributor. If you are interested, you can comment and fork pythainlp (for coding). Thai soundex in pythainlp.soundex

[wannaphong]

for Hacktoberfest, You can select one from there.