Add the xLanguageid method to sqlite3_fts3_tokenizer versions 1 and greater.

FossilOrigin-Name: f8e9c445dd358c40e5a7bf3756b9f291909dbea7

• ext/fts3/fts3.c[diff]
• ext/fts3/fts3Int.h[diff]
• ext/fts3/fts3_expr.c[diff]
• ext/fts3/fts3_snippet.c[diff]
• ext/fts3/fts3_test.c[diff]
• ext/fts3/fts3_tokenizer.c[diff]
• ext/fts3/fts3_tokenizer.h[diff]
• ext/fts3/fts3_write.c[diff]
• manifest[diff]
• manifest.uuid[diff]
• test/fts4langid.test[diff]
• test/permutations.test[diff]