v2.0.0

Breaking release. The API is renamed to follow the standard, and the header now checks what it is given.

Breaking

• Renamed: SdfDialect → Revision, SdfHeader → Header, SdfMetadata → Metadata, with_dialect → with_revision, --dialect → --revision.
• Header.binary is replaced by Header.format. num_points and num_profiles are gone; use sdf.data.shape.
• SdfFile.data_type and SdfFile.open are removed; use header.data_type and sdfio.read.
• A Header rejects an unsupported data type, a non-positive z_scale and a non-ASCII manufacturer_id.
• z_scale now defaults to "auto", and Metadata dates default to "now". None means "not recorded".
• SdfFormatError is also a ValueError.
• Codec helpers such as encode_raw and get_data_type are no longer in the top-level API.

New

• SdfFile.from_array and SdfFile.with_data.
• with_revision(..., refit_z_scale=True).
• Revision.rules, for example max_binary_count.
• Four examples: write, read, modify and plot.

Changed

• Dates are held as UTC. Older revisions still store local time on disk.
• Reading tolerates a byte order mark and NaN as BAD.

Fixed

• A truncated or oversized binary header now raises SdfFormatError instead of struct.error or OverflowError.