Initial commit

`Tokenizer` can _just barely_ parse a basic, well-formed move list.

Initially, I wanted to provide the movetext as a `Stream` rather than a
string, the idea being that it could be processed as it was being read
from a file without having to read the entire file into memory first. I
had difficulties with the stream being unreadable in
`Tokenizer.ParseMoves()`, so I switched to a string in order to get the
actual parsing logic down first.

Because of the `yield return` strategy, the debug console output
includes all of the expected halfmoves multiple times in various orders.
After running a test, generally the full, in-order list seems to exist
at the bottom of the output.

1 files changed, 11 insertions, 0 deletions

diff --git a/DotnetPgn/Models/HalfMove.cs b/DotnetPgn/Models/HalfMove.cs
new file mode 100644
index 0000000..b94d77d
--- /dev/null
+++ b/DotnetPgn/Models/HalfMove.cs
@@ -0,0 +1,11 @@
+namespace DotnetPgn.Models
+{
+    public record HalfMove
+    {
+        public int MoveNumber {get; init;}
+        public Player Player { get; init; }
+        public Piece Piece { get; init; }
+        public Square SourceSquare { get; init; }
+        public Square TargetSquare { get; init; }
+    }
+}
\ No newline at end of file