Update for the KDL 1.0 spec (changes ported across from kdl4j with en…

…hancements)

* Ported KDL1.0 changes across but unit tests are broken

* Port a minor syntax fix from kdl4j

* Fix BOM on unit tests/KDL output, and import a whole ton of example testcases from kdl4j

* import all testcases from main KDL repo

* Fix parsing booleans with type annotations, and some compiler warnings

* Split out KDL types into their own files

* Implement BigInteger support for KDL with radix preservation

* More test compliance around string escaping

* Radix stuff for conformance testing

* more numeric compliance

* Final compliance tests. Extremely large/small scientific notation values are out of scope for KDL.NET at this time

* Update README.md

* Update KDL config for KdlDotNet1.1.0

* Create .gitattributes

Bump nuget package version to 1.0.0