Update Cumulus to common Cargo formmating scheme

[nuke-web3]

This is a proposed standardized scheme for all of Cumulus Cargo.toml files. The PR's commits are piecewise, to review in parts for convenience, as there are many files touched.

No code changes are made in this PR, only ordering and comments as needed

Motivation

The Cargo.toml files are presently somewhat unsorted and non-uniform. It sometimes is non-obvious what aspects are where to be found when moving though Cumulus, occasionally leading confusion or missing key common/missing aspects between different crates.

Implementation

This scheme cleans all files to fit the same standard format where all deps are alphabetical, in order by relevant repository being used to obtain the crate:

[package]
...

[dependencies]
{**crates.io hosted**} 

# Substrate
.... = { git = "https://github.com/paritytech/substrate", branch = "master" }

# Polkadot
... = { git = "https://github.com/paritytech/polkadot", branch = "master" }

# Cumulus
... = { path = "..." }

[dev-dependencies]
{**same sections as above if needed**}

[build-dependencies]
substrate-wasm-builder = { git = "https://github.com/paritytech/substrate", branch = "master" }

[features]
default = [ "std" ]
std = [
	{**same order as [dependencies] section above**}
]