Create SampleQC and Batching notebooks (#744)

* Initial commit

* Add example to subset batches

Co-authored-by: Mark Walker <[email protected]>

* Update description for copy ratio analysis

Co-authored-by: Mark Walker <[email protected]>

* Update description for copy ratio analysis (upper bound)

Co-authored-by: Mark Walker <[email protected]>

* Updated per Mark's comments

* Minor formatting changes

* Modified ordering of sample/family ID column

* Collapsed helper function cells

* Updated per Mark's latest round of feedback

* Minor formatting changes

* Further edits - batching

* Spelling error

* Modified file name for PASS_METADATA

* Removed weights input from batching

* Updated file name in batching notebook for qc results

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Co-authored-by: Mark Walker <[email protected]>