InkHUD Extended ASCII (#6768)

* Custom AdafruitGFX fonts with extended ASCII encodings

* AppletFont handles re-encoding of UTF-8 text

* Manual parsing of text which may contain non-ASCII chars

* Display emoji reactions, even when unprintable
Important to indicate to users that a message has been received, even if meaning is unclear.

* Superstitious shrink_to_fit
I don't think these help, but they're not hurting!

* Use Windows-1252 fonts by default

* Spelling

* Tidy up nicheGraphics.h

* Documentation

* Fix inverted logic
Slipped in during a last minute renaming while tidying up to push..

src/graphics/niche/InkHUD/Applets/Examples/BasicExample/BasicExampleApplet.cpp

@@ -9,6 +9,12 @@ using namespace NicheGraphics;
 void InkHUD::BasicExampleApplet::onRender()
 {
     printAt(0, 0, "Hello, World!");
+
+    // If text might contain "special characters", is needs parsing first
+    // This applies to data such as text-messages and and node names
+
+    // std::string greeting = parse("Grüezi mitenand!");
+    // printAt(0, 0, greeting);
 }
 
 #endif