Add support for permanent locked vesting accounts (#8520)

* add basics for permanent locked vesting account support

* remove sdk.Msg support for PermanentLockedVestingAccount

* add tests for PermanentLockedVestingAccount

* remove unecessary tests

* drop unecessary create vesting acct msgs

* Update x/auth/vesting/types/vesting_account.go

Co-authored-by: Aaron Craelius <aaron@regen.network>

* Update x/auth/vesting/types/vesting_account.go

Co-authored-by: Aaron Craelius <aaron@regen.network>

* Update x/auth/vesting/types/vesting_account.go

Co-authored-by: Aaron Craelius <aaron@regen.network>

* Update x/auth/vesting/types/vesting_account_test.go

Co-authored-by: Aaron Craelius <aaron@regen.network>

* Review changes

* Factorize init function

* Factorize more

* Comments

* Fix build after rename

Co-authored-by: Amaury <1293565+amaurym@users.noreply.github.com>
Co-authored-by: Aaron Craelius <aaron@regen.network>

docs/core/proto-docs.md

@@ -581,6 +581,7 @@
     - [DelayedVestingAccount](#cosmos.vesting.v1beta1.DelayedVestingAccount)
     - [Period](#cosmos.vesting.v1beta1.Period)
     - [PeriodicVestingAccount](#cosmos.vesting.v1beta1.PeriodicVestingAccount)
+    - [PermanentLockedAccount](#cosmos.vesting.v1beta1.PermanentLockedAccount)
   
 - [Scalar Value Types](#scalar-value-types)
 
@@ -8192,6 +8193,23 @@ periodically vests by unlocking coins during each specified period.
 
 
 
+
+<a name="cosmos.vesting.v1beta1.PermanentLockedAccount"></a>
+
+### PermanentLockedAccount
+PermanentLockedAccount implements the VestingAccount interface. It does
+not ever release coins, locking them indefinitely. Coins in this account can
+still be used for delegating and for governance votes even while locked.
+
+
+| Field | Type | Label | Description |
+| ----- | ---- | ----- | ----------- |
+| `base_vesting_account` | [BaseVestingAccount](#cosmos.vesting.v1beta1.BaseVestingAccount) |  |  |
+
+
+
+
+
  <!-- end messages -->
 
  <!-- end enums -->