Core: Fix potential uninitialized variable warnings in Wii_IPC_HLE_Device_es.cpp
Merge pull request #914 from lioncash/potential-uninitialized

Core: Fix potential uninitialized variable warnings in Wii_IPC_HLE_Devices_es.cpp
Core: Break movie header validity checking into a function
Merge pull request #913 from lioncash/movie-func

Core: Break movie header validity checking into a function
InputCommon: Rename class InputPlugin to InputConfig