Nimbus Stage 2 - Enable permissionless staking on Calamari

[Garandor]

Description

pallet_parachain_staking forked from https://github.com/PureStake/moonbeam/tree/3dcdf95ab7a8647da4f6d0e65ae2a6d8fd37acd9/pallets/parachain-staking

Functional Changes from upstream pallet_parachain_staking:

1. Added Whitelist Collator Bond and corresponding unit tests
2. Tightly coupled pallet with
   • manta_primitives
   • manta_collator_selection ( temporary for whitelist )
   • session ( temporary for whitelist )
3. added pub fn initialize_pallet() to allow for migration of a live chain to this pallet
4. Added STORAGE_VERSION to the pallet

replaces: #693
closes: #691

• calculate weights - dummy weights in place, correct weights on release PR Manta v3.4.0 Release checklist #793
• migrate collator's candidate bond to be staking bond instead

Followup Topics

#798

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