Load the block tree and coins database from disk, initializing state if we're running with -reindex
Declared in <validation.h>
[[requires_capability(0x7fbc8fcf9718), requires_capability(0x7fbc96d91ed8), requires_capability(0x7fbcaf727948), requires_capability(0x7fbc9e23f028)]]
bool
LoadBlockIndex();true if the block index was loaded successfully.