Error highlighting

[LadyDefile]

Extensions.Extensions.cs

• Fixed a bug that prevented users from entering temporary double spaces (like when attempting to add words.

dictionaries\lang_en

• Added "plugin" to the dictionary
• Added "kinda" to the dictionary

Gui.DebugUI.cs

• Added horizontal scrollbar
• changed TextWrapped to Text for better display of chunks
• Added hidden setting to show word indices.

Gui.ScratchPadUI.cs

• Expanded GetDebugString() function to include more data.
• DrawChunkDisplay now calls DrawChunkItem(...) *Created DrawChunkItem(string) function to handle better drawing of chunks.
• Created OnTextCallback(ImGuiInputTextCallbackData) function to handle all text callbacks and reposition cursor so that it never stays between wrap markers and new line characters.
• Changed text callback from OnTextEdit to OnTextCallback
• Fixed a bug in OnReplace() that broke wrap markers.
• Removed unnecessary code for fixing broken wrap markers.
• Fixed a bug where replacing a single word with multiple words would cause further replacements to fail.
• Fixed a bug that would cause headers to make the wrong text highlighted for replacement.
• Changed DrawChunkItem debug indices to display based on a hidden setting.

Helpers.ChatHelper.cs

• Fixed a bug that caused blank headers to start a line with a space.

Gui.SettingsUI.cs

• Updated DrawSpellCheckTab() to display new options for error highlighting.

Configuration.cs

• Added setting to enable spelling error highlights.
• Added setting for spelling error highlight color.