[data.tbx11k] Re-structure database to accomodate bbox annotation querying

.pre-commit-config.yaml

src/ptbench/data/tbx11k/datamodule.py

src/ptbench/data/tbx11k/make_splits_from_database.py

src/ptbench/data/tbx11k/v1-fold-0.json

src/ptbench/data/tbx11k/v1-fold-1.json

src/ptbench/data/tbx11k/v1-fold-2.json

src/ptbench/data/tbx11k/v1-fold-3.json

src/ptbench/data/tbx11k/v1-fold-4.json

src/ptbench/data/tbx11k/v1-fold-5.json

src/ptbench/data/tbx11k/v1-fold-6.json

src/ptbench/data/tbx11k/v1-fold-7.json

src/ptbench/data/tbx11k/v1-fold-8.json

src/ptbench/data/tbx11k/v1-fold-9.json

src/ptbench/data/tbx11k/v1-healthy-vs-atb.json

src/ptbench/data/tbx11k/v2-fold-0.json

src/ptbench/data/tbx11k/v2-fold-1.json

src/ptbench/data/tbx11k/v2-fold-2.json

src/ptbench/data/tbx11k/v2-fold-3.json

src/ptbench/data/tbx11k/v2-fold-4.json

src/ptbench/data/tbx11k/v2-fold-5.json