Implemented smlua_text_utils_dialog_get

[EliteMasterEric]

• Implemented smlua_text_utils_dialog_get as a new Lua API function.
  • This function returns a table providing the information for a given line of dialog.
  • This allows for mods to create custom dialog interfaces, and for mods to perform inline replacements on the text of existing dialog (for example, replacing one name with another)
  • This function respects any previous replacements that have been performed using smlua_text_utils_dialog_replace.
• Added a hard-coded limit of 1024 characters to smlua_text_utils_dialog_replace.
  • This should not conflict with the vanilla game, as the longest dialog is the Lakitu roughly 780 characters.
• Added a Lua log warning to smlua_text_utils_dialog_replace which displays if the provided string exceeds the hard-coded length limit of 1024.
• Added a Lua log warning to smlua_text_utils_dialog_replace which displays if the target dialog ID is invalid (outside the range of 1-170).

[EliteMasterEric]

Limiting the dialog length may cause mod incompatibilities if a mod has a massive string.

The reason I limited dialogue length is because I had to convert the internal dialog string into a char* that could be passed to Lua; this requires using convert_string_sm64_to_ascii, which requires a fixed length buffer.

I feel like it'd be best to use autogen instead of manually creating smlua_func_smlua_text_utils_dialog_get. This would require exposing the struct DialogEntry, and allowing cobjects to handle strings.

I previously used autogen and then switched to manual in order to return a table containing all the values. I am new to Lua C and do not know how to expose a struct or allow cobjects to handle the strings being passed to Lua

[Isaac0-dev]

Please feel free to reopen this pull request when you have implemented the requested changes.