v1.27.0

MathOptInterface v1.27.0

Diff since v1.26.0

Merged pull requests:

• [Nonlinear] add support for univariate sign (#2444) (@odow)
• [FileFormats.NL] fix copy_to if MOI.Name is set (#2446) (@odow)
• Prep for v1.27.0 (#2447) (@odow)

Closed issues:

• [FileFormats.MPS] store matrix for writing in column order (#2420)
• Add support for nonlinear sign(x) (#2448)
• Reading .mps file with NAME (#2445)