Upgrade to v0.5.0

[niilptr]

This PR upgrades the core dependencies of Firmachain and adds new sdk core modules and ibc applications.

In particular:

• upgrades CosmosSDK to v0.50.12
• upgrades CometBFT to v0.38.17
• upgrades Wasmd to v0.54.0 which runs WasmVM v2.2.1
• upgrades IbcGo to v8.6.1
• adds the x/circuit sdk module
• adds the packet-forward-middleware ibc middleware
• adds the ibc-hooks ibc module
• adds the ibc-fee ibc module
• adds the ica-host ibc module
• adds the icq ibc module
• removes the unused custom x/burn module

Also, the new v0.5.0 upgrade handler:

• handles the params migration from the legacy params module to the respective modules' keepers
• handles the gov proposals migration adding the respective proposals' proposer
• sets the ExpeditedMinDeposit gov param to 5000fct in order to make the minimum deposit for expedited proposals equal to the minimum deposit for standard proposals.
• sets the MinInitialDepositRatio gov param to 0.52 (52%) in order to have a minimum allowed deposit threshold of 2600fct

[haryunio]

Based on the internal discussion, we decided to apply following changes to v0.5.0 upgrade.

1. Vote Extension: Do not allow (keep current system)

• for clarity and less complexity in governance

2) Cancelling Proposals: 0.5 returned, transfer rest to specified wallet address

• for clear circulating supply
• fees collected to governance cold wallet (firma1kvlelvv6u7h4jasqlpu956czt4543xqzc37h2v)
• will decide its usage through further voting

3) Minimum Proposal Deposit At Time of Submission: 2500 FCT

• half of voting threshold (5000 FCT)
• ~100$ worth, reasonable amount
• MinInitialDepositRatio to 0.5

[koofree]

I mentioned my reviews about this to kintsugi-tech#3.

[koofree]

I properly reviewed in the original PR of the kintsugi repository

[haryunio]

LGTM