Renamed folders for consistency, using sim/athena/shared schema (#27)

Rename the following folders:
hal/lib/Athena -> hal/lib/athena
hal/lib/Desktop -> hal/lib/sim
hal/lib/Shared -> hal/lib/shared
wpilibc/Athena -> wpilibc/athena
wpilibc/simulation -> wpilibc/sim

Windows users may need to run gradlew clean after updating.

wpilibc/athena/include/NetworkCommunication/LoadOut.h

@@ -0,0 +1,57 @@
+
+#ifndef __LoadOut_h__
+#define __LoadOut_h__
+
+#ifdef SIMULATION
+#include <vxWorks_compat.h>
+#define EXPORT_FUNC __declspec(dllexport) __cdecl
+#else
+#include <stdint.h>
+#define EXPORT_FUNC
+#endif
+
+#define kMaxModuleNumber 2
+namespace nLoadOut {
+#if defined(SIMULATION)
+typedef enum {
+  kModuleType_Unknown = 0x00,
+  kModuleType_Analog = 0x01,
+  kModuleType_Digital = 0x02,
+  kModuleType_Solenoid = 0x03,
+} tModuleType;
+bool EXPORT_FUNC
+getModulePresence(tModuleType moduleType, uint8_t moduleNumber);
+#endif
+typedef enum {
+  kTargetClass_Unknown = 0x00,
+  kTargetClass_FRC1 = 0x10,
+  kTargetClass_FRC2 = 0x20,
+  kTargetClass_FRC3 = 0x30,
+  kTargetClass_RoboRIO = 0x40,
+#if defined(SIMULATION)
+  kTargetClass_FRC2_Analog = kTargetClass_FRC2 | kModuleType_Analog,
+  kTargetClass_FRC2_Digital = kTargetClass_FRC2 | kModuleType_Digital,
+  kTargetClass_FRC2_Solenoid = kTargetClass_FRC2 | kModuleType_Solenoid,
+#endif
+  kTargetClass_FamilyMask = 0xF0,
+  kTargetClass_ModuleMask = 0x0F,
+} tTargetClass;
+tTargetClass EXPORT_FUNC getTargetClass();
+}
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#if defined(SIMULATION)
+uint32_t EXPORT_FUNC
+FRC_NetworkCommunication_nLoadOut_getModulePresence(uint32_t moduleType,
+                                                    uint8_t moduleNumber);
+#endif
+uint32_t EXPORT_FUNC FRC_NetworkCommunication_nLoadOut_getTargetClass();
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif  // __LoadOut_h__