Grove driver, I2C migrations, bugfixes and docs (#532)

Devices/btt-panda-touch/Source/devices/Display.cpp

@@ -3,11 +3,15 @@
 #include <Gt911Touch.h>
 #include <PwmBacklight.h>
 #include <RgbDisplay.h>
+#include <tactility/check.h>
+#include <tactility/device.h>
 
 std::shared_ptr<tt::hal::touch::TouchDevice> createTouch() {
     // Note for future changes: Reset pin is 41 and interrupt pin is 40
+    auto* i2c = device_find_by_name("i2c0");
+    check(i2c);
     auto configuration = std::make_unique<Gt911Touch::Configuration>(
-        I2C_NUM_0,
+        i2c,
         800,
         480
     );