v4.0.0

Behaviour changes

• Opening a GptDisk now succeeds even if one header is invalid
  (use the only_valid_headers config flag to get the old behaviour back)

Changes

• Type::from_str now is case insensitive, Thanks @IronBatman2715
• add GptDisk::calculate_alignment allowing to calculate the sector alignment, Thanks @gaochuntie
• add GptDisk::add_partition_at, Thanks @gaochuntie
• Bump MSRV to 1.65
• implement Clone for GptDisk
• relax trait bounds on some functions of GptDisk
• remove Partition::size and replace it with sectors_len which returns the correct number of sectors, Thanks @sjoerdsimons
• GptDisk::{primary_header, backup_header, try_header} now return an error instead of just Option
• Remove initialized state & configuration
• add the option to allow the partition count to be changed
• add the option to only open a disk if both headers are valid
• add the option to keep the backup partition readonly
• split GptDisk::remove_partition into two functions remove_partition and remove_partition_by_guid
• add GptDisk::header function which allows to get the current header (either primary or backup)
• add GptDisk::take_partitions
• remove GptDisk::update_partitions_safe and replace it with a config option readonly_backup
• remove GptDisk::update_partitions_embedded and replace it with the config option change_partition_count
• add GptDisk::device_ref
• add GptDisk::device_mut
• crc32 are now stored in the header after it has been written instead of always being zeros
• Add DragonFlyBSD as partition and OS type, Thanks @phcoder
• GptDisk now accepts a generic DiskDevice
• add ChromeOS RWFW partition type, Thanks @phcoder
• improve error reporting, returning HeaderError or the new GptError
• add HeaderBuilder to simplify creating a header (replaces Header::compute_new)
• add GptDisk::take_device
• Support custom partition GUIDs
• logging is now optional use the log or tracing feature to use the appropriate logging crate