* fix(ActiveRecord): missing ActiveRecordLib_API definitions for clang/gcc.
* fix(FPEnvironment): export FPEnvironmentImpl classes (#4393, #3331)
* fix(Crypto): export *Impl classes used from inlines (#4393, #3331)
* fix(Dynamic): explicitly instantiate and export Dynamic::Struct for string and int (-fvisibility=hidden) (#4393, #3331)
* fix(JSON): explicitly instantiate and export SharedPtr for JSON::Array and JSON::Object (-fvisibility=hidden) (#4393, #3331)
* enh(CMake): Set symbol visibility to hidden (#4393, #3331)
* enh(configure): user c++17 standard for iphone, Darwin and ARM-Linux.
* fix(UTF): explicitly instantiate and export 16 and 32-bit strings (-fvisibility=hidden) (#4393, #3331)
* fix(RecordSet): make Extraction.h internal and instantiate RecordsSet::column template functions only for supported types. (-fvisibility=hidden) (#4393, #3331)
* fix(UTF): fix explicitly instantiation on Windows (-fvisibility=hidden) (#4393, #3331)
* enh(CMake): Add github jobs for macOS with visibility set to hidden (#4393, #3331)
* fix(CppParser): Add missing declarations for CppParser_API (#4393, #3331)
* enh(CMake): Enable more options in github jobs for macOS with visibility set to hidden (#4393, #3331)
* fix(MongoDB): Add missing MongoDB_API (#4393, #3331)
* * Fix: MongoDB::OpMsgCursor did not handle zero batch size properly: cursor requests failed.
* Improvement: Add emptyFirstBatch to indicate that the size of the first batch shall be zero for performance to get potential error ASAP from the server.
* Poco::MongoDB: Some database commands do not need collection as an argument. An integer "1" is passed instead.
* Binary writer/reader: add writeCString and readCString.
* MongoDB::Database: add queryBuildInfo and queryServerHello; add WireVersion enum.
* MongoDB: Introduce OpMsgMessage (request and reply) and related changes in Connection, Database, MessageHeader.
* MongoDB: First unit test changes for OpMsgMessage.
* MongoDB::Document: new functions addNewArray and remove.
* MongoDB: OP_MSG unacknowledged write and many improvements
* MongoDB: new cursor using OP_MSG
* MongoDB: bunch of new tests for OP_MSG wire protocol.
* BinaryWriter::WriteCString: use write instead of operator <<.
* MongoDB::OpMsgCursor: Slightly modified prototype code for using moreToCome flag.
* MongoDB: Add OpMsg* files to Makefiles.
* MongoDB: Add OpMsg* files to VS project files.
* Compile fixes.
* MongoDB::Database: Add factory function for database commands createOpMsgMessage() and cursors createOpMsgCursor()
* MongoDB::PooledConnection: Prevent unwanted release by disabling copy semantics. Enabled move semantics for C++11.
* Construct MongoDB::Cursor from aggragation cursor.
* Added function to get OS-specific numerical thread ID and %J pattern to use numerical OS thread id in pattern formatter.
Co-authored-by: Tomaz Beltram <tomaz.beltram@topit.si>
