Halborn audit fixes (#198)

* Fix for HAL-01 - amount of cspr attached to pick_bid is now verified.

* Fix for HAL-02 issue.
Now only Created and Reclaimed bids can be picked.

* Fix for HAL-04 issue.
Now jobs after grace period cannot be submitted using submit_job
endpoint.

* Fix for HAL-03 issue.
Now burning more reputation that there is balance will cause a revert.

* Fix for HAL-05 issue.
Now the formal voting time in `is_in_time` function is calculated
correctly.

* Fix for HAL-06 issue.
Removed match statement from simple voter.

* Fix for HAL-08.
Removed unnecessary condition from `validate_cancel` function.

* Fix for HAL-03 issue - follow up.
To coply with existing tests, burning above balance will not cause revert, but the amount is checked.

* Fix for HAL-07 ownership transfer.
Now ownership transfer can be done in two steps.

* Fixes after CR.
Added ownership methods to daoids contract.
Rewrote ownership tests to use two-step transfer.

* Removed change_ownership from all contracts.
Rewrote tests to use two step ownership change only.

.github/workflows/ci-casper-rust-contract.yml

@@ -24,7 +24,7 @@ on:
 
 jobs:
   build:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-22.04
     steps:
       - uses: actions/checkout@v2
       - uses: actions-rs/toolchain@v1