"Scan and Select" input for Canned Messages (#4365)

* Add "Scan and Select" input method for canned messages

* Adapt canned message drawing if USE_EINK
* Indicate current selection with indent rather than inverse text
* Avoid large text on "sending" and delivery report pop-ups
* Fit SNR and RSSI details on screen

* Change hash function which detects changes in E-Ink images
The old function struggled to distingush between images on the canned-message frame, failing to update when scrolling between messages. No real justification for the new algorithm, other than "it works" and doesn't seem "too expensive". For context, this function runs once a second.

* Use canned messages (scan and select) by default with HT-VME213 and HT-VME290

* Guard for HAS_SCREEN

src/modules/Modules.cpp

@@ -2,6 +2,7 @@
 #if !MESHTASTIC_EXCLUDE_INPUTBROKER
 #include "input/InputBroker.h"
 #include "input/RotaryEncoderInterruptImpl1.h"
+#include "input/ScanAndSelect.h"
 #include "input/SerialKeyboardImpl.h"
 #include "input/TrackballInterruptImpl1.h"
 #include "input/UpDownInterruptImpl1.h"
@@ -144,6 +145,16 @@ void setupModules()
             delete upDownInterruptImpl1;
             upDownInterruptImpl1 = nullptr;
         }
+
+#if HAS_SCREEN
+        // In order to have the user button dismiss the canned message frame, this class lightly interacts with the Screen class
+        scanAndSelectInput = new ScanAndSelectInput();
+        if (!scanAndSelectInput->init()) {
+            delete scanAndSelectInput;
+            scanAndSelectInput = nullptr;
+        }
+#endif
+
         cardKbI2cImpl = new CardKbI2cImpl();
         cardKbI2cImpl->init();
 #ifdef INPUTBROKER_MATRIX_TYPE