Update submodules and conda environments

[sduess]

Hey guys,

here' is the last pull-request for SHARPy's early summer release. This pull-request updates our submodules XBEAM and UVLM in SHARPy to their latest master branch.

Have a look and raise any concerns. Thank you!

[ArturoMS13]

Thank you

[codecov-commenter]

Codecov Report

Merging #161 (65eed82) into develop (c3b09a0) will increase coverage by 0.10%.
The diff coverage is 100.00%.

@@             Coverage Diff             @@
##           develop     #161      +/-   ##
===========================================
+ Coverage    62.52%   62.63%   +0.10%     
===========================================
  Files          124      124              
  Lines        22679    22670       -9     
===========================================
+ Hits         14180    14199      +19     
+ Misses        8499     8471      -28     

Impacted Files	Coverage Δ
sharpy/generators/straightwake.py	82.14% <ø> (ø)
sharpy/linear/src/linuvlm.py	28.08% <ø> (-0.68%)	⬇️
sharpy/linear/assembler/linearaeroelastic.py	74.93% <100.00%> (+0.82%)	⬆️
sharpy/presharpy/presharpy.py	82.55% <100.00%> (+0.20%)	⬆️
sharpy/solvers/aerogridloader.py	100.00% <100.00%> (ø)
sharpy/structure/utils/modalutils.py	73.51% <0.00%> (+0.39%)	⬆️
sharpy/utils/algebra.py	70.10% <0.00%> (+1.92%)	⬆️
sharpy/linear/src/lingebm.py	64.40% <0.00%> (+2.44%)	⬆️

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[ngoiz]

Thanks!