refactor: better README in bigquery table access pattern analysis (#679)

* feat: add bigquery table access pattern analysis

* fix: README formatting

* fix: dummy table example in README

* feat: add Apache license headers

* feat: add apache license to JS files

* feat: add blank dir and file for template

* fix: definition of a pipeline

* feat: add clearer explanation in README

* feat: clearer setup steps in README

* fix: formatting of newline in README

* feat: interactive tables mode as default

* Update examples/bigquery-table-access-pattern-analysis/README.md

Co-authored-by: Tim Sell <63295+tims@users.noreply.github.com>

* Update examples/bigquery-table-access-pattern-analysis/README.md

Co-authored-by: Tim Sell <63295+tims@users.noreply.github.com>

* Update examples/bigquery-table-access-pattern-analysis/README.md

Co-authored-by: Tim Sell <63295+tims@users.noreply.github.com>

* Update examples/bigquery-table-access-pattern-analysis/README.md

Co-authored-by: Tim Sell <63295+tims@users.noreply.github.com>

* Update examples/bigquery-table-access-pattern-analysis/README.md

Co-authored-by: Tim Sell <63295+tims@users.noreply.github.com>

* Update examples/bigquery-table-access-pattern-analysis/README.md

Co-authored-by: Tim Sell <63295+tims@users.noreply.github.com>

* feat: add more explanation about the graph and components

Co-authored-by: Agnes Natasya <agnesnatasya@google.com>
Co-authored-by: Tim Sell <63295+tims@users.noreply.github.com>