Add QMDB support

[sept-en]

Recently, QMDB store was released, promising in the paper:

• up to 6X compared to RocksDB and 8X compared to NOMT performance during updates.
• optimization for SSD performance - one SSD read per state access, state updates with O(1) IO.
• in-memory Merkleization with no SSD reads or writes.
• small DRAM footprint (2.3 bytes per entry), allowing to run the store with a large amount of entries (4B+) on consumer-grade hardware.

Needs for the storage optimization were previously discussed in #4326, #9443, and other nearcore discussions.

The features of QMDB might positively affect the nearcore performance allowing:

• bigger TPS;
• decreasing the cost of touching the storage tree, thus reducing the read/write gas cost per byte;
• lower the requirements for running the validator node;
• reduce the state bloat.

The QMDB needs to be benchmarked specifically for the NEAR blockchain separately, comparing it with the RocksDB's performance.