perf-studio-ctrl: remember project creation time

Signed-off-by: Hagen Paul Pfeifer <hagen@jauu.net>
module: implement stable/experimental logic

Signed-off-by: Hagen Paul Pfeifer <hagen@jauu.net>
perf-studio-ctrl: show experimental modules by default

Signed-off-by: Hagen Paul Pfeifer <hagen@jauu.net>