Get rid of precompile list in configs

[gumb0]

Closes #5825

1. Instead of filling ChainOperationParams::precompiled from config JSON, fill it with hard-coded list of 9 currently existing precompiles.
2. PrecompiledContract constructor changed to take precompile name string and starting block.
3. Price functions for linear cost precompiles created, to keep all pricers consistently in one place (instead of keeping price constants somewhere else, as before)
4. I've decided to consider "precompile" records in configs deprecated for now, so they will not generate validation error, but be ignored.

We could also get rid of PrecompiledRegistrar at some point, I think it's a useless complication.

cc @winsvega

[codecov-io]

Codecov Report

Merging #5840 into master will increase coverage by 0.01%.
The diff coverage is 92.68%.

@@            Coverage Diff             @@
##           master    #5840      +/-   ##
==========================================
+ Coverage   64.04%   64.06%   +0.01%     
==========================================
  Files         362      362              
  Lines       30910    30896      -14     
  Branches     3434     3430       -4     
==========================================
- Hits        19796    19793       -3     
+ Misses       9885     9874      -11     
  Partials     1229     1229

[chfast]

👍 For removing registrar.

[gumb0]

Rebased