v0.8.0: Initial Experimental GBFS Support

What's Changed

• GBFS Support by @felixguendling in #198
• GBFS Journey Details by @felixguendling in #237
• Parking Module Improvements + ParkenDD Support by @pablohoch in #223
• GBFS: support for car sharing by @felixguendling in #239
• BugFix: add footpaths if input footpaths are not symmetric by @felixguendling in #245
• Support GBFS Direct Connections (start - destionation without public transport) by @felixguendling in #240
• loader: handle file access errors on windows by @pablohoch in #248
• GBFS map by @felixguendling in #247
• GBFS Multi Provider Map by @felixguendling in #250

Full Changelog: v0.7.5...v0.8.8