Deprecate FeeCalculator returning APIs

[jackcmay]

Problem

FeeCalculator is directly exposed via external APIs limiting the evolution of how Solana calculates fees.

Summary of Changes

• Deprecate APIs that expose FeeCalculator
• Expose new APIs that return just the blockhash, or allow a fee to be calculated based on a passed in Message
• Rework internal mechanisms to use the new APIs

These changes do not change how Solana calculates fees, but instead encapsulates the fee calculations to the bank so that they may evolve over time.

Outstanding work:

• Rework downstream projects to use the new APIs
• More tests

Fixes #

[jackcmay]

@t-nelson Would you take a look at least at the nonce/offline signing related stuff?

[codecov]

Codecov Report

Merging #19120 (19534e4) into master (5233338) will decrease coverage by 0.0%.
The diff coverage is 72.5%.

@@            Coverage Diff            @@
##           master   #19120     +/-   ##
=========================================
- Coverage    82.9%    82.8%   -0.1%     
=========================================
  Files         455      455             
  Lines      129154   129413    +259     
=========================================
+ Hits       107159   107278    +119     
- Misses      21995    22135    +140     

[CriesofCarrots]

Looking good! Just one consideration about the various get_fee_for_transaction methods that take a Message...
Otherwise, nitty nits. (Btw, the nonce stuff I only skimmed, since Trent will be looking at that closely)

[t-nelson]

Nonce/offline stuff looks great. Just one comment from me beyond Tyera's notes