Change SpdxPackage hasFile to a RelatedElementCollection

[goneall]

The hasFile property was deprecated in SPDX 2.0 to be replaced with a CONTAINED relationship between the SpdxPackage and the SpdxFile.

WARNING: Fixing this issue may introduce an incompatibility of the hasFile property is used.

The following Spdx Store implementations should be reviewed and possibly modified to remove the use of the hasFile property:

• spdx-java-rdf-store
• spdx-java-spreadsheet-store
• spdx-java-tagvalue-store
• spdx-java-jackson-store

[goneall]

Based on the discussion in the 1 Feb 2022 tech call, this approach will be consistent with SPDX 3.0 and can be merged.

[goneall]

Resolved