fix(streamer): added streamer pagination

[keruch]

Description

Added streamer pagination. ADR: https://www.notion.so/dymension/ADR-x-Streamer-Pagination-ad21ef72458e472cad9fb6f9932c16cd.

• Added a BeforeEpochStart hook
• Modified a AfterEpochEnd hook
• Added EndBlock
• Now rewards are distributed not in a single block, but along the whole epoch
• Added stream iterator

Please pay special attention to

• StreamIterator
• Epoch hooks
• EndBlock

---

Closes #1010

All items are required. Please add a note to the item if the item is not applicable and
please add links to any relevant follow-up issues.

PR review checkboxes:

I have...

• Added a relevant changelog entry to the Unreleased section in CHANGELOG.md
• Targeted PR against the correct branch
• included the correct type prefix in the PR title
• Linked to the GitHub issue with discussion and accepted design
• Targets only one GitHub issue
• Wrote unit and integration tests
• Wrote relevant migration scripts if necessary
• All CI checks have passed
• Added relevant godoc comments
• Updated the scripts for local run, e.g genesis_config_commands.sh if the PR changes parameters
• Add an issue in the e2e-tests repo if necessary

SDK Checklist

• Import/Export Genesis
• Registered Invariants
• Registered Events
• Updated openapi.yaml
• No usage of go map <- only in one place and under my supervision
• No usage of time.Now()
• Used fixed point arithmetic and not float arithmetic
• Avoid panicking in Begin/End block as much as possible
• No unexpected math Overflow
• Used sendCoin and not SendCoins
• Out-of-block compute is bounded
• No serialized ID at the end of store keys
• UInt to byte conversion should use BigEndian

Full security checklist here

---

For Reviewer:

• Confirmed the correct type prefix in the PR title
• Reviewers assigned
• Confirmed all author checklist items have been addressed

---

After reviewer approval:

• In case the PR targets the main branch, PR should not be squash merge in order to keep meaningful git history.
• In case the PR targets a release branch, PR must be rebased.

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[zale144]

nice work. left some comments

[omritoptix]

@keruch build fails

[zale144]

very nice

[codecov]

Codecov Report

Attention: Patch coverage is 32.17993% with 980 lines in your changes missing coverage. Please review.

Project coverage is 25.37%. Comparing base (61d5ab1) to head (54f08aa).
Report is 37 commits behind head on main.

Files with missing lines	Patch %	Lines
x/streamer/types/events.pb.go	1.02%	582 Missing ⚠️
x/streamer/types/streamer.pb.go	36.06%	184 Missing and 27 partials ⚠️
x/streamer/types/genesis.pb.go	0.00%	53 Missing ⚠️
x/streamer/types/params.pb.go	0.00%	30 Missing ⚠️
x/streamer/types/stream.pb.go	45.28%	21 Missing and 8 partials ⚠️
x/streamer/keeper/hooks.go	63.76%	16 Missing and 9 partials ⚠️
x/streamer/keeper/distribute.go	81.15%	9 Missing and 4 partials ⚠️
x/streamer/keeper/abci.go	71.42%	8 Missing and 4 partials ⚠️
app/upgrades/v4/upgrade.go	40.00%	4 Missing and 2 partials ⚠️
x/streamer/keeper/genesis.go	70.00%	3 Missing and 3 partials ⚠️
... and 5 more

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1100      +/-   ##
==========================================
- Coverage   28.22%   25.37%   -2.86%     
==========================================
  Files         332      502     +170     
  Lines       52494    99084   +46590     
==========================================
+ Hits        14818    25139   +10321     
- Misses      35346    70713   +35367     
- Partials     2330     3232     +902     

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