CSUB-887: Stand alone try runtime

[atodorov]

Description of proposed changes

---

Practical tips for PR review & merge:

• All GitHub Actions report PASS
• Newly added code/functions have unit tests
  • Coverage tools report all newly added lines as covered
  • The positive scenario is exercised
  • Negative scenarios are exercised, e.g. assert on all possible errors
  • Assert on events triggered if applicable
  • Assert on changes made to storage if applicable
• Modified behavior/functions - try to make sure above test items are covered
• Integration tests are added if applicable/needed

[atodorov]

$ cargo build --release --features try-runtime
    Updating git repository `https://github.com/paritytech/try-runtime-cli.git`
    Updating git repository `https://github.com/paritytech/polkadot-sdk`
    Updating crates.io index
    Updating git repository `https://github.com/w3f/ring-vrf`
    Updating git repository `https://github.com/w3f/fflonk`
    Updating git repository `https://github.com/w3f/ring-proof`
    Updating git repository `https://github.com/paritytech/arkworks-substrate`
    Updating git repository `https://github.com/paritytech/polkadot-sdk`
    Updating git repository `https://github.com/paritytech/litep2p`
error: failed to select a version for `parity-scale-codec`.
    ... required by package `polkadot-core-primitives v7.0.0 (https://github.com/paritytech/polkadot-sdk?rev=289f5bbf7a45dc0380904a435464b15ec711ed03#289f5bbf)`
    ... which satisfies git dependency `polkadot-core-primitives` of package `cumulus-primitives-core v0.7.0 (https://github.com/paritytech/polkadot-sdk?rev=289f5bbf7a45dc0380904a435464b15ec711ed03#289f5bbf)`
    ... which satisfies git dependency `cumulus-primitives-core` of package `try-runtime-core v0.7.0 (https://github.com/paritytech/try-runtime-cli.git?tag=v0.7.0#251438fe)`
    ... which satisfies git dependency `try-runtime-core` of package `try-runtime-cli v0.7.0 (https://github.com/paritytech/try-runtime-cli.git?tag=v0.7.0#251438fe)`
    ... which satisfies git dependency `try-runtime-cli` of package `creditcoin-node v2.232.1 (/home/gluwa/creditcoin-2.0/creditcoin-substrate/node)`
versions that meet the requirements `^3.6.12` are: 3.6.12

all possible versions conflict with previously selected packages.

  previously selected package `parity-scale-codec v3.6.3`
    ... which satisfies dependency `parity-scale-codec = "^3.2.1"` (locked to 3.6.3) of package `creditcoin-node v2.232.1 (/home/gluwa/creditcoin-2.0/creditcoin-substrate/node)`

failed to select a version for `parity-scale-codec` which could resolve this conflict