Library Improvements

[bluebinary]

Added several new features to the library including a new BytesView class; updated the documentation, added unit tests for all of the data types; and fixed a few issues:

• Added support for creating Bytes values from bytes values.

• Added a new BytesView class for iterating over bytes and bytearray objects with the ability to access the data as arbitrarily sized groups of bytes as well as being able to cast bytes to specific data types.

• Added Float, Float16, Float32 and Float64 types, as well as Double (an alias for Float64).

• Added Size, SingedSize and UnsignedSize integer subtypes which have a maximum size dependent upon the system they are running on.

• Added Unicode, UTF8, UTF16, UTF32, ASCII types to compliment the String type; these string variants hold strings with different default character encodings.

• Added Type superclass as a parent of all of the type subclasses which makes type comparison and class hierarchy membership easier to discern and allows shared behaviour to be centrally defined and maintained.

• The Short type was previously unsigned and is now signed as per the C standard following the Python convention; the Short type was previously based on embedded metadata standards, which treat short as unsigned and defined a separate signed short.

• The Long type was previously unsigned and is now signed as per the C standard following the Python convention; the Long type was previously based on embedded metadata standards, which treat long as unsigned and defined a separate signed long.

• The LongLong type was previously unsigned and is now signed as per the C standard following the Python convention; the LongLong type was previously based on embedded metadata standards, which treat long long as unsigned and defined a separate signed long long.

• A new UnsignedShort type has been added to compliment the signed Short type and pairs with the SignedShort type which is functionally equivalent to Short.

• A new UnsignedLong type has been added to compliment signed Long type and pairs with the SignedLong type which is functionally equivalent to Long.

• A new UnsignedLongLong type has been added to compliment signed LongLong type and pairs with the SignedLongLong type which is functionally equivalent to LongLong.