Use metaprogramming to generate out-of-place methods

[amontoison]

All Krylov methods are concerned but I only want to use it for block_gmres now.
I want to check the impact on precompilation time for the other methods.

Update: No performance reduction on non-Block Krylov methods. 👍

[github-actions]

Package name	latest	stable
CaNNOLeS.jl
DCISolver.jl
FletcherPenaltySolver.jl
JSOSolvers.jl
LLSModels.jl
LinearSolve.jl
Percival.jl
RipQP.jl

[codecov]

Codecov Report

Attention: Patch coverage is 51.28205% with 19 lines in your changes missing coverage. Please review.

Project coverage is 94.93%. Comparing base (b68a403) to head (f5bb734).
Report is 4 commits behind head on main.

Files with missing lines	Patch %	Lines
src/krylov_solve.jl	50.00%	17 Missing ⚠️
src/block_krylov_solvers.jl	0.00%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #887      +/-   ##
==========================================
+ Coverage   94.64%   94.93%   +0.28%     
==========================================
  Files          44       44              
  Lines        8514     8206     -308     
==========================================
- Hits         8058     7790     -268     
+ Misses        456      416      -40     

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