Github-Pull: #7489
Rebased-From: 7539f1aae3b41279dc5d49e09f448a78a071e114
Cherry-picked-From: 9ca957bcd401de69c4c03904b9ee8b8b41052905

Adds a configuration option for addressindex to search for txids by address. Includes
an additional rpc method for getting the txids for an address.

Zcash: Backport to previous txdb format

fixes a sorting issue when iterating over keys

It's only necessary to sort when combining results for several addresses
as the results are already in order from the database.

Zcash: Backport to previous txdb format

There was a bug where the spending address index could have the same key
as the receiving address index if the input and output indexes matched. This lead
to the output always overwriting the input index leading to incorrect balances
with missing spent amounts. This patch separates the two so that they have unique
keys so balances will be correctly calculated.

Zcash: Backport to previous txdb format

Zcash: Integrated into older mempool code

Zcash: Backport to old txdb code

…verbose

for the purposes of secondary sorting by block order

There was an issue where getblockhashes wouldn't work from bitcoin-cli
as the two params would be strings instead of integers. This fixes that
issue, and will parse the first param as JSON for other addressindex
related rpc methods.

…nabled

Zcash: Adapted to older mempool code

fixes a minor bug where iteration would not end when there are matching
hashes for a p2sh and p2pkh address, and would return results for
both addresses

fixes a bug that would happen when an output would match an input with
the same address and index, and would lead to the outputs not appearing
in results.

usage: ./wallet-utility -datadir=<directory>
help: ./wallet-utility -h

Zcash: Backported to older chainparams code, added Zcash libs to LDADD

since there is i/o that can happen when retrieving extended input
and output information, limiting the duration of the lock in getrawtransaction
can help improve concurrency

Zcash: Use older script ASM function

There was a previous assumption that blockindex would be quite small. With addressindex
and spentindex enabled the blockindex is much larger and the amount of cache allocated for
it should also increase. Furthermore, enabling compression should decrease the amount of
disk space required and less data to write/read. The default leveldb max_open_files is set to
1000, for the blockindex the default is set to 1000 with compression. The 64 value that is
current is kept for the utxo database and does not enable compression. Two additional options
are added here to be able to configure the values for leveldb and the block index:

- `-dbmaxopenfiles` A number of files for leveldb to keep open
- `-dbcompression` Boolean 0 or 1 to enable snappy leveldb compression

Zcash: Migrated to the older leveldbwrapper.*

Zcash: Migrated to old txdb code

…e previous commit import