Modify aug block in place

[grishabh147]

Made some small changes to the code:

• Added functions to modify AugmentedNLPBlockModel in-place
• Made fullspace.jl compatible with MadNLP. Now BlockNLPModels.jl passes all tests with MadNLP.jl as the NLP solver.

[codecov-commenter]

Codecov Report

Merging #7 (0a1a304) into main (afc52d3) will decrease coverage by 2.05%. The diff coverage is 14.28%.

@@            Coverage Diff             @@
##             main       #7      +/-   ##
==========================================
- Coverage   88.41%   86.36%   -2.06%     
==========================================
  Files           5        5              
  Lines         259      264       +5     
==========================================
- Hits          229      228       -1     
- Misses         30       36       +6     

Impacted Files	Coverage Δ
src/BlockNLPModels.jl	87.80% <ø> (ø)
src/augmented_block.jl	80.00% <0.00%> (-6.96%)	:arrow_down:
src/dualized_block.jl	84.00% <0.00%> (-7.31%)	:arrow_down:
src/full_space.jl	86.61% <100.00%> (-0.11%)	:arrow_down:

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[grishabh147]

@frapac, I think this can be merged now.