First beta release for C-Blosc2

Changes from 2.0.0a5 to 2.0.0-beta.1

• The library is called now blosc2 and not blosc anymore. This is necessary
  so as to prevent collisions with existing blosc deployments.

• The make install now install all the necessary requirements out-of-the-box.

• Use Intel IPP's LZ4Safe when compressing/decompressing: this provides better
  compression ratios and speed (in some cases). It is activated automatically
  if Intel IPP is found in the system, but you can always disable it with:
  cmake -DDEACTIVATE_IPP=ON

• BREAKING CHANGE: the next API have been made private:

  • blosc2_frame_append_chunk -> frame_append_chunk
  • blosc2_frame_get_chunk -> frame_get_chunk
  • blosc2_frame_decompress_chunk -> frame_decompress_chunk

  Now the appending and retrieval of data in frames should always be made via the frame-backed super-chunk API. The idea is to deduplicate the I/O primitives as much as possible, and the super-chunks are the logical way for doing this.

• BREAKING CHANGE: the next APIs have been renamed:

  • blosc2_get_cparams - > blosc2_schunk_get_cparams
  • blosc2_get_dparams - > blosc2_schunk_get_dparams

• Internal BloscLZ sources bumped to 2.0.0.

• Internal LZ4 sources bumped to 1.9.1.

• Internal Zstd sources bumped to 1.4.0.