Beta release of Egret

What's Changed

• Startup/shutdown curve by @bknueven in #219
• Refactoring _lazy_ptdf_uc_solve_loop into component functions by @bknueven in #224
• Update README.md to make proper link to GHA by @bknueven in #225
• Rts gmlc parser updates by @michaelbynum in #209
• adding missing init file by @bknueven in #230
• Filter scalar reserve requirements by @darrylmelander in #231
• Eliminating Pyomo 6 deprecation warning by @bknueven in #232
• Adding GHA for publishing to PyPI and TestPyPI by @bknueven in #233
• Hooks for UC as subblock by @bknueven in #234
• Support for piecewise (convex) costs in ACOPF by @michaelbynum in #227
• Catching more edgecases in piecewise logic by @bknueven in #237
• Adding reset after pre-lp warmstart loop by @bknueven in #236
• Singlecost by @DLWoodruff in #240
• Add a PR template, update README formatting by @jsiirola in #241
• adding option to use SOC overestimators from paper by @michaelbynum in #217
• Priced load and renewables by @bknueven in #238
• Adding user-configurable slack type by @bknueven in #239
• Replacing getitem() with at() for ordered sets by @bknueven in #243
• Replacing getitem() with at() for ordered sets, Part II by @bknueven in #244
• RTS-GMLC fixes by @bknueven in #245
• ModelData Utilities by @darrylmelander in #249
• Reducing complexity of check that all thermal generators are assigned… by @jeanpaulwatson in #250
• Fix DataFrame indexing error in RTS-GMLC parser by @darrylmelander in #251
• Updating mutable penalty params by @bknueven in #252
• Setting up 0.5.0 by @bknueven in #256

New Contributors

• @darrylmelander made their first contribution in #231
• @jsiirola made their first contribution in #241

Full Changelog: 0.1.1...0.5.0