FLASC v1.5

[christiannvaughn]

Features and improvements in FLASC v1.5

• Feature/update reqs pin polars by @paulf81 in https://github.com/NREL/flasc/pull/140
• Add developer install documentation by @paulf81 in https://github.com/NREL/flasc/pull/153
• Add day/night splitting of data by @paulf81 and @misi9170 in #127
• Performance improvements in interpolation by @Bartdoekemeijer in #124
• Add ruff formatting by @paulf81
• Add further example of total uplift calculation by @paulf81 in #155
• Minor performance improvements