Add basic JSON functions to profile

Signed-off-by: Maxim Osipov <maxim.osipov@gmail.com>
Delete avg and fb profile leftovers

Signed-off-by: Maxim Osipov <maxim.osipov@gmail.com>
Add gson JSON library

Signed-off-by: Maxim Osipov <maxim.osipov@gmail.com>
Split reference profile from activity

Signed-off-by: Maxim Osipov <maxim.osipov@gmail.com>
Use time in ms in profile get interface

Signed-off-by: Maxim Osipov <maxim.osipov@gmail.com>
Fix some JSON profile bugs

Signed-off-by: Maxim Osipov <maxim.osipov@gmail.com>
Initialize location with truely random seed

Signed-off-by: Maxim Osipov <maxim.osipov@gmail.com>
Update to JSON profile with abs XYZ values

Signed-off-by: Maxim Osipov <maxim.osipov@gmail.com>
Added draft code for True Colours uploader

Signed-off-by: Maxim Osipov <maxim.osipov@gmail.com>