Implement MOI.default_cache

[blegat]

Still need to merge fixes in MOI that were detected in this PR and wait for an MOI release that include them:

• Fix modify scalar constants with bridged variables MathOptInterface.jl#1752
• Throw DeleteNotAllowed when deleted constraint index of bridged varaiables MathOptInterface.jl#1753
• Call final_touch in optimize in CachingOptimizer MathOptInterface.jl#1754
• Canonicalize function in add_constraint for MatrixOfConstraints MathOptInterface.jl#1755

[codecov]

Codecov Report

Merging #137 (72dbd92) into master (d899fd9) will decrease coverage by 2.35%.
The diff coverage is 50.00%.

@@            Coverage Diff             @@
##           master     #137      +/-   ##
==========================================
- Coverage   81.20%   78.84%   -2.36%     
==========================================
  Files           3        3              
  Lines         250      260      +10     
==========================================
+ Hits          203      205       +2     
- Misses         47       55       +8     

Impacted Files	Coverage Δ
src/MOI_wrapper/MOI_wrapper.jl	78.76% <33.33%> (-1.24%)	⬇️
src/MOI_wrapper/permuted_exponential_cone.jl	72.72% <75.00%> (-16.17%)	⬇️

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update d899fd9...72dbd92. Read the comment docs.

[odow]

@blegat why are we getting this ZeroBridge error when we weren't without the OptimizerCache?