v2.0.0

• First public release
• Improve inline documentation
• Add thread-safety support
• Add HDR API support
• Add APIs to enable and disable virtual HPD polling on the DP AUX interface
• Add display brightness API
• Make dlsdk_initialise and dlsdk_display_clear return status codes
• Improve the frame presentation API
• Improve the dlsdk_display_power_on API
• Rename dlsdk_update_firmware to dlsdk_device_update_firmware
• Rename the AuxStatus enum to dlsdk_aux_status_t
• Rename dlsdk_restart_and_free_device to dlsdk_restart_device
• Remove dlsdk_free_device