v0.5.10

ClimaAnalysis v0.5.10

Diff since v0.5.9

Merged pull requests:

• Add Var.set_units (#104) (@ph-kev)
• Add Var._make_interpolant and boundary conditions (#105) (@ph-kev)
• Correctly idenfity variables with _ in the name (#109) (@Sbozzolo)

Closed issues:

• Add extrapolation to constructors for OutputVar (#95)
• Fix issue with interpolation of dates (#99)
• Units "W m^-2" and "W m-2" are not the same (#100)
• Difficulty using mask (#106)
• Some short_names are not recognized (#110)