hidpp20: update features list

Based on SetPoint6.65.62_32.exe and Options_2.10.73.exe (features.xml,
defaults.xml, LogiOptionsMgr.exe).

The names are based on the named next to the feature ID. For duplicates,
_2 is appended to the name.

This commands helps parsing numbers from debug prints:

    strings LogiOptionsMgr.exe |
    sed -nr 's/.*(Feature[0-9a-fA-F]{4})/\1 /p' | sort |
    awk 'tolower(a)!=tolower($1){print"";a=$1}1;' | less -S

lib/logitech_receiver/hidpp20.py

@@ -51,28 +51,58 @@ FEATURE = _NamedInts(
 	DEVICE_FW_VERSION=0x0003,
 	DEVICE_NAME=0x0005,
 	DEVICE_GROUPS=0x0006,
+	RESET=0x0020, # "Config Change"
 	DFUCONTROL=0x00C0,
+	DFUCONTROL_2=0x00C1,
+	DFU=0x00D0,
 	BATTERY_STATUS=0x1000,
+	LED_CONTROL=0x1300,
+	CHANGE_HOST=0x1814,
 	BACKLIGHT=0x1981,
 	REPROG_CONTROLS=0x1B00,
 	REPROG_CONTROLS_V2=0x1B01,
+	REPROG_CONTROLS_V2_2=0x1B02, # LogiOptions 2.10.73 features.xml
 	REPROG_CONTROLS_V3=0x1B03,
+	REPROG_CONTROLS_V4=0x1B04,
 	WIRELESS_DEVICE_STATUS=0x1D4B,
 	LEFT_RIGHT_SWAP=0x2001,
+	SWAP_BUTTON=0x2005,
 	VERTICAL_SCROLLING=0x2100,
+	SMART_SHIFT=0x2110,
 	HI_RES_SCROLLING=0x2120,
+	HIRES_WHEEL=0x2121,
+	LOWRES_WHEEL=0x2130,
 	MOUSE_POINTER=0x2200,
+	ADJUSTABLE_DPI=0x2201,
+	POINTER_SPEED=0x2205,
+	ANGLE_SNAPPING=0x2230,
+	SURFACE_TUNING=0x2240,
+	HYBRID_TRACKING=0x2400,
 	FN_INVERSION=0x40A0,
 	NEW_FN_INVERSION=0x40A2,
 	ENCRYPTION=0x4100,
+	LOCK_KEY_STATE=0x4220,
 	SOLAR_DASHBOARD=0x4301,
 	KEYBOARD_LAYOUT=0x4520,
+	KEYBOARD_DISABLE=0x4521,
+	DUALPLATFORM=0x4530,
+	KEYBOARD_LAYOUT_2=0x4540,
 	TOUCHPAD_FW_ITEMS=0x6010,
 	TOUCHPAD_SW_ITEMS=0x6011,
 	TOUCHPAD_WIN8_FW_ITEMS=0x6012,
 	TOUCHPAD_RAW_XY=0x6100,
 	TOUCHMOUSE_RAW_POINTS=0x6110,
 	TOUCHMOUSE_6120=0x6120,
+	GESTURE=0x6500,
+	GESTURE_2=0x6501,
+	GKEY=0x8010,
+	MKEYS=0x8020,
+	MR=0x8030,
+	REPORT_RATE=0x8060,
+	COLOR_LED_EFECTS=0x8070,
+	PER_KEY_LIGHTING=0x8080,
+	ONBOARD_PROFILES=0x8100,
+	MOUSE_BUTTON_SPY=0x8110,
 )
 FEATURE._fallback = lambda x: 'unknown:%04X' % x