Pabutools

Also fix python-mip error for INF_OR_UNBD

What's Changed
* Implement exhaustive_stop argument for exhaustion rule by Kubvv in https://github.com/pbvoting/pabutools/pull/22
* Implement Greedy Visualisations (+ Address MES Feedback) by Kartheyan in https://github.com/pbvoting/pabutools/pull/23


**Full Changelog**: https://github.com/pbvoting/pabutools/compare/1.1.6...v1.1.7

What's Changed
* Implement new feature for generating web pages with visualisations by Kartheyan in https://github.com/pbvoting/pabutools/pull/15
* Mes analytics adjustments by Kubvv in https://github.com/pbvoting/pabutools/pull/16
* Implement page summary template and update round analysis template. by Faster319 in https://github.com/pbvoting/pabutools/pull/17
* implement PrimalDualBranch algorithm by Stefan-Haas in https://github.com/pbvoting/pabutools/pull/18
* fix issue where split_idx is incorrect if all projects are feasible by Stefan-Haas in https://github.com/pbvoting/pabutools/pull/19
* MES effective support analytics by Kubvv in https://github.com/pbvoting/pabutools/pull/20

New Contributors
* Kartheyan made their first contribution in https://github.com/pbvoting/pabutools/pull/15
* Faster319 made their first contribution in https://github.com/pbvoting/pabutools/pull/17
* Stefan-Haas made their first contribution in https://github.com/pbvoting/pabutools/pull/18

**Full Changelog**: https://github.com/pbvoting/pabutools/compare/1.1.5...1.1.6