Updated `L2CAPSocket`

Merge branch 'nonblockRead'

Merge pull request PureSwift#34 from PureSwift/hotfix/fix-remote-name…

…-request

PureSwift#33 Fixed `remoteNameRequest` validation

Fixed missing dependency

Replaced usage of `[UInt8]` with `Data`

Fixed warnings

Removed pins

Updated DeviceRequest

Updated dependencies

Added `HCIPollEvent()`