Fix Swift 5.2 build issue and warning, Updated libsmb2

Nothing more!

Fixed memory corruption errors

• Refactoring async_await()
• [URLResourceKey: Any] extensions in order to easier access to values
• Updated libsmb2 to fix memory corruption errors

Add removeItem() method, Bug fixes

• Add removeItem() function. removeDirectory() and removeFile() are still accessible for performance reasons.
• Fix errors on Xcode 10.2.
• Added test for error.
• Probable fix #41.
• Fix a race condition in service().
• Updated libsmb2.
• Minor refactors.

Fix some crashes, Support encryption

• Support SMB3 encrypted connection
• Fix server error may cause waiting until timeout
• Fix a critical memory management issue
• Fix EXC_BAD_ACCESS crash in async handler
• Update libsmb2 (Better error code for connect)
• Refactoring

Fix cocoapods building

Previous release fixes:

• Update libsmb2 library
• New method to find destination of symbolic
• Support for symlink file type
• Authentication set to NTLMSSP
• Better error text
• Removal of Accio package manager support
• Fix Objective-C inline help data types
• Fix #33

2.3.0

• Update libsmb2 library
• New method to find destination of symbolic
• Support for symlink file type
• Authentication set to NTLMSSP
• Better error text
• Removal of Accio package manager support
• Fix Objective-C inline help data types
• Fix #33

Custom port in SMB url

• Added custom port support
• Prevent appending/overwriting files
• Fix: attributesOfFileSystem() to handle slash opening/ending
• Enhanced test coverage

Changing API fundamentally to adopt Swift 5 improvements

This version changes AMSMB2's public API to exploit new Swift features, while providing an Objective-C compatibility layer.

• Return Result in completion handler instead of nullable pairs
  • You can use switch to handle result or error, see readme
• Accepting DataProtocol instead of concrete Data
  • You can pass [UInt8] or DispatchData to write(data:) method without casting
• Accepting Range instead of offset-length pair
  • Use the same range you already use to subscript data for contents(atPath:range:) method
• Disconnect gracefully
  • disconnect(graceful: true) will wait until all queued file operations are done and their completion handler is executed.
• Reading from / writing to InputStream/OutputStream directly.
• Fixed reporting incorrect creation date of file

Fixed reading small files issue

Fixed #24 and added tests to prevent issue in future.

Swft 5.0 support

• Fixed timeout issue of listShares() on Swift 5.0