added multiline option to textbox and textinput

dependencies/subprojects/animationwindow/src/widgets/TextBox.cpp

@@ -5,7 +5,7 @@ void TDT4102::TextBox::update(nk_context *context) {
     nk_style_push_color(context, &s->edit.text_normal, textColor);
     nk_style_push_color(context, &s->edit.border_color, borderColor);
     nk_style_push_style_item(context, &s->edit.normal, nk_style_item_color(boxColor));
-    nk_edit_string_zero_terminated(context, NK_EDIT_READ_ONLY, const_cast<char*>(contents.data()), internal::TEXT_BOX_CHARACTER_LIMIT, nk_filter_ascii);
+    nk_edit_string_zero_terminated(context, NK_EDIT_READ_ONLY | NK_EDIT_MULTILINE, const_cast<char*>(contents.data()), internal::TEXT_BOX_CHARACTER_LIMIT, nk_filter_ascii);
     nk_style_pop_color(context);
     nk_style_pop_color(context);
     nk_style_pop_style_item(context);

dependencies/subprojects/animationwindow/src/widgets/TextInput.cpp

 #include "widgets/TextInput.h"
 
 void TDT4102::TextInput::update(nk_context *context) {
-    nk_edit_string_zero_terminated(context, NK_EDIT_SELECTABLE | NK_EDIT_ALWAYS_INSERT_MODE | NK_EDIT_BOX | NK_EDIT_SIMPLE, const_cast<char*>(contents.data()), internal::TEXT_INPUT_CHARACTER_LIMIT, nk_filter_ascii);
+    nk_edit_string_zero_terminated(context, NK_EDIT_SELECTABLE | NK_EDIT_ALWAYS_INSERT_MODE | NK_EDIT_BOX | NK_EDIT_SIMPLE | NK_EDIT_MULTILINE, const_cast<char*>(contents.data()), internal::TEXT_INPUT_CHARACTER_LIMIT, nk_filter_ascii);
     
     // Detect whether any editing of the string has occurred
     // Nuklear only reports whether the text box has lost focus