Update to MOI v1.0

[odow]

CI is going to fail because it needs some solvers tagged, but leaving this PR as a placeholder.

[codecov]

Codecov Report

Merging #476 (ba39c9c) into master (1f13624) will increase coverage by 0.14%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master     #476      +/-   ##
==========================================
+ Coverage   92.09%   92.23%   +0.14%     
==========================================
  Files          83       83              
  Lines        5137     5347     +210     
==========================================
+ Hits         4731     4932     +201     
- Misses        406      415       +9     

Impacted Files	Coverage Δ
src/solution.jl	90.81% <0.00%> (-1.28%)	⬇️
src/conic_form.jl	100.00% <0.00%> (ø)
src/atoms/affine/kron.jl	100.00% <0.00%> (ø)
src/variable_conic_form.jl	100.00% <0.00%> (ø)
src/atoms/affine/transpose.jl	100.00% <0.00%> (ø)
src/atoms/affine/partialtrace.jl	100.00% <0.00%> (ø)
src/atoms/sdp_cone/trace_logm.jl	100.00% <0.00%> (ø)
src/atoms/sdp_cone/nuclearnorm.jl	100.00% <0.00%> (ø)
src/atoms/exp_+_sdp_cone/logdet.jl	100.00% <0.00%> (ø)
src/atoms/second_order_cone/norm2.jl	100.00% <0.00%> (ø)
... and 50 more

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[odow]

I've marked the next version as 0.15.0-DEV, and will merge once CI passes. The changes aren't controversial.