v0.37.0 CHP Defaults and Monthly Heating Load Fixes

What's Changed

• update error checking of whl length by @adfarth in #295
• Size class recalc, use input boiler efficiency by @Bill-Becker in #298
• Add adjustments to defaults for CHP prime generator by @zolanaj in #296
• update CHP defaults to allow is_electric_only = nothing by @zolanaj in #301
• Add monthly heating fuel loads for simulated_load by @Bill-Becker in #302
• Update chp_constraints.jl by @adfarth in #303
• CHP/ExistingBoiler changes, Electric-only (Prime Generator) CHP Option, Bug Fixes by @Bill-Becker in #299
• update chp defaults for recip engine cooling factor by @zolanaj in #304
• Fix assignment of thermal_effic half = full if not input by @Bill-Becker in #305
• Add versions to Standard Library packages by @Bill-Becker in #306

Full Changelog: v0.36.0...v0.37.0