The logic for loading compressed document chunks has a check that the
`max_op` of a change is valid. This check was overly strict in that it
checked that the max op was strictly larger than the max op of a
previous strange - this rejects valid documents which contain changes
with no ops in them, in which case the max op can be equal to the max op
of the previous change. Loosen the logic to allow empty changes.
The logic for reconstructing changes from the compressed document format
records operations which set a key in an object so that it can later
reconstruct delete operations from the successor list of the document
format operations. The logic to do this was only recording set
operations and not `make*` operations. This meant that delete operations
targeting `make*` operations could not be loaded correctly.
Correctly record `make*` operations for later use in constructing delete
operations.
Implement parsing the binary format using the new parser library and the
new encoding types. This is superior to the previous parsing
implementation in that invalid data should never cause panics and it
exposes and interface to construct an OpSet from a saved document much
more efficiently.
Signed-off-by: Alex Good <alex@memoryandthought.me>
