Optimized weights (#10692)

* Add optimization flags to 'release' profile

Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>

* Optimized weights

Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>

* Add missing pallets

Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>

* Add `production` profile

Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>

* pallet-collective: fix tests

the weight of System.remark went to 0, the collective test uses a
remark call to trigger an out-of-gas condition so I replaced it
with a `remark_with_event` call.

Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>