feat: add query param to add a tip, partialFee, and priority field to each extrinsic for /node/transaction-pool

[TarikGul]

Feature

Summary: Allow /node/transaction-pool to accept a query parameter called includeFee. When true it will attach a decoded tip, partialFee, and priority to each extrinsic.

Query Param includeFee

• Default: It will be false.
• If true: It will attach a tip, partialFee, and priority to each extrinsic within the "pool" array.

rel: #925

[CurlyBracketEffect]

Logic looks good...Just the note about the comment.

[jsdw]

Just to relay @joepetrowski's comment for consideration here:

Wouldn't you want to return the total fee including tip?
Since that's what determines priority. So if a transfer has a fee of 0.1, and a remark has a fee of 0.001, and the pool you query is loaded with transfers with a tip of 0, you could then think, "I'll put a tip of 0.01 just to make sure I'm ahead of all the stingy non-tippers", but with a total fee of 0.011 you'll still be last in line.

[TarikGul]

@jsdw Yea I am going to rewrite this a bit to include the patialFee, and totalFee. Will request reviews again after.

[niklasad1]

nice, totally missed that that was a closure in substrate

[niklasad1]

gucci :)