v0.4.0

BeaData v0.4.0

Diff since v0.3.1

• Added support for FixedAssets and NIUnderlyingDetail datasets, in addition to NIPA
• Deprecated Bea() struct, and all metadata and data retrieval functions; deprecation warnings added
• New documentation for new functions

Merged pull requests:

• Install TagBot as a GitHub Action (#12) (@JuliaTagBot)
• Updating for next version (#13) (@stephenbnicar)