Caching load_dataset and adding read_csv_kwargs

[martinvonk]

Short Description

Add @lru_chache decorator to load_dataset and list_dataset to prevent #721
Add settings.json with read_csv kwargs for each file in the dataset.

Checklist before PR can be merged:

• closes Add cache=True to ps.load_dataset #721

[codacy-production]

Coverage summary from Codacy

See diff coverage on Codacy

Coverage variation	Diff coverage
✅ +0.13% (target: +0.00%)	✅ 100.00%

Coverage variation details

	Coverable lines	Covered lines	Coverage
Common ancestor commit (ab06d0e)	6254	4737	75.74%
Head commit (b979317)	6301 (+47)	4781 (+44)	75.88% (+0.13%)

Coverage variation is the difference between the coverage for the head and common ancestor commits of the pull request branch: <coverage of head commit> - <coverage of common ancestor commit>

Diff coverage details

	Coverable lines	Covered lines	Diff coverage
Pull request (#752)	18	18	100.00%

Diff coverage is the percentage of lines that are covered by tests out of the coverable lines that the pull request added or modified: <covered lines added or modified>/<coverable lines added or modified> * 100%

See your quality gate settings    Change summary preferences

_{Codacy will stop sending the deprecated coverage status from June 5th, 2024. Learn more}