merge submodule and update rocksdb using cmake

[kernelai]

goal：

• merge pink 、slash、blackwidow into pika repository
• update rocksdb.
• support cmake

env:
ubuntu 22.04.1 LTS
g++ version: g++ 11.3.0
rocksdb version : v7.7.3

[kernelai]

when merge blackwidow , found error
[build] /home/kernelai/github.com/pika/src/blackwidow/src/db_checkpoint.cc:21:10: fatal error: util/file_util.h: No such file or directory [build] 21 | #include "util/file_util.h" [build] | ^~~~~~~~~~~~~~~~~~ [build] compilation terminated.

[kernelai]

when merge blackwidow , found error [build] /home/kernelai/github.com/pika/src/blackwidow/src/db_checkpoint.cc:21:10: fatal error: util/file_util.h: No such file or directory [build] 21 | #include "util/file_util.h" [build] | ^~~~~~~~~~~~~~~~~~ [build] compilation terminated.

modify

#include util/file_util.h
#include util/filename.h

to

#include "file/file_util.h"
#include "file/filename.h"

[kernelai]

error：

In file included from /home/kernelai/github.com/pika/src/blackwidow/src/blackwidow.cc:9:
[build] /home/kernelai/github.com/pika/src/blackwidow/src/options_helper.h:47:1: error: could not convert ‘{{"max_background_jobs", {208, blackwidow::MemberType::kInt}}, {"max_background_compactions", {212, blackwidow::MemberType::kInt}}, {"base_background_compactions", {<expression error>, blackwidow::MemberType::kInt}}, {"max_open_files", {68, blackwidow::MemberType::kInt}}, {"bytes_per_sync", {400, blackwidow::MemberType::kUint64T}}, {"delayed_write_rate", {456, blackwidow::MemberType::kUint64T}}, {"max_total_wal_size", {80, blackwidow::MemberType::kUint64T}}, {"wal_bytes_per_sync", {408, blackwidow::MemberType::kUint64T}}, {"stats_dump_period_sec", {304, blackwidow::MemberType::kUint}}}’ from ‘<brace-enclosed initializer list>’ to ‘std::unordered_map<std::__cxx11::basic_string<char>, blackwidow::MemberTypeInfo>’
[build]    47 | };
[build]       | ^
[build]       | |
[build]       | <brace-enclosed initializer list>

base_background_compactions has been removed
link

[kernelai]

errror:

build] /home/kernelai/github.com/pika/src/blackwidow/../../third/rocksdb/util/core_local.h:66:15: error: ‘port’ has not been declared
[build]    66 |   int cpuid = port::PhysicalCoreID();

this is because bw/db_checkpoint.cc use CopyFile function which in rocksdb/file/file_util.cc。it cant find name port which is configed posix version.
so, add add_definitions(-DROCKSDB_PLATFORM_POSIX -DROCKSDB_LIB_IO_POSIX)in bw cmakelist