#### Problem
To write the owners-block, it requires an in-memory struct that maintains
a set of unique owner addresses while providing a look-up function to
obtain the OwnerOffset with the specified owner address.
#### Summary of Changes
This PR adds OwnersTable, the in-memory struct that maintains
a set of unique owner addresses while providing a look-up function to
obtain the OwnerOffset with the specified owner address.
#### Test Plan
A new unit-test is added.
* buffer accounts field for hash
* use smallvec to allocate hash buffer on stack
* sort deps
* more opt
* clippy
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Co-authored-by: HaoranYi <haoran.yi@solana.com>
* Adds a module `address_lookup_table` to the SDK.
* Adds a module `address_lookup_table::instruction` to the SDK.
* Adds a module `address_lookup_table::error` to the SDK.
* Adds a module `address_lookup_table::state` to the SDK.
* Moves AddressLookupTable into SDK as well.
* Moves AddressLookupTableAccount into address_lookup_table.
* Adds deprecation messages.
* Disentangles dependencies across cargo files.
sakridge
Brooks
Brooks
Brooks
Dmitri Makarov
Yueh-Hsuan Chiang
HaoranYi
Yihau Chen
Alexander Meißner
behzad nouri
Ryo Onodera
Pankaj Garg