General: Tidy up includes

Alphabetizes includes and resolves quite a few instances of indirect
inclusions, making the requirements of several interfaces explicit. This
also trims out includes that aren't actually necessary (likely due to
changes in the API over time).

lib/inputdev/DualshockPad.cpp

@@ -1,10 +1,11 @@
 #include "boo/inputdev/DualshockPad.hpp"
 #include "boo/inputdev/DeviceSignature.hpp"
+
 #define _USE_MATH_DEFINES
 #include <cmath>
-#include <iostream>
 #include <cstdio>
-#include <memory.h>
+#include <cstring>
+#include <iostream>
 
 #ifdef _MSC_VER
 inline uint16_t bswap16(uint16_t val) { return _byteswap_ushort(val); }