Multiple changes.

- Minor README updates.
- Create LICENSE and History files.
- Use 'func' instead of 'proc' where applicable.
- Add some destructor debug.
- Rename primary exceptions to 'X-error'.
- Bind to proper object types in prepared statement parameters.
- Retain the found 'type' in the KuzuValue object.

FossilOrigin-Name: db59c0b901b1715170e0d269fc2bf00477ac48af4d10a747eb5a749adbf6268e

src/kuzu/tuple.nim

@@ -3,22 +3,25 @@
 proc `=destroy`*( tpl: KuzuFlatTupleObj ) =
     ## Graceful cleanup for out of scope tuples.
     if tpl.valid:
+        when defined( debug ): echo &"Destroying tuple: {tpl}"
         kuzu_flat_tuple_destroy( addr tpl.handle )
 
 
-proc `$`*( tpl: KuzuFlatTuple ): string =
+func `$`*( tpl: KuzuFlatTuple ): string =
     ## Stringify a tuple.
     result = $kuzu_flat_tuple_to_string( addr tpl.handle )
     result.removeSuffix( "\n" )
 
 
-proc `[]`*( tpl: KuzuFlatTuple, idx: int ): KuzuValue =
-    ## Returns a KuzuValue at the given +idx+.
+func `[]`*( tpl: KuzuFlatTuple, idx: int ): KuzuValue =
+    ## Returns a KuzuValue at the given *idx*.
+
     result = new KuzuValue
+
     if kuzu_flat_tuple_get_value( addr tpl.handle, idx.uint64, addr result.handle ) == KuzuSuccess:
         result.valid = true
-
+        result.getType()
     else:
-        raise newException( KuzuIndexException,
+        raise newException( KuzuIndexError,
             &"Unable to fetch tuple value at idx {idx}. ({tpl.num_columns} column(s).)" )