Base type safety in C#. Clear FlatBufferBuilder in C#.

[RevenantX]

Hi! I added basic offset safety in C# binding. And method that allows reset FlatBufferBuilder state.
int offsets replaced by Offset<T> for structs and tables, StringOffset for strings and VectorOffset for vectors.

[ghost]

This looks great!

Did you run any performance tests to see if the small structs are close to the speed of ints? They should be, but it be nice to know for sure.

Did you run generate code for Java to ensure nothing has changed there?

[RevenantX]

Did you run generate code for Java to ensure nothing has changed there?

Yes. In Java nothing changed.

Did you run any performance tests to see if the small structs are close to the speed of ints? They should be, but it be nice to know for sure.

No. Maybe speed difference exists. But very liitle.

[ghost]

This will be a breaking change for C# users, but it will be for a good cause :)