Dynamic Constant Math

Adding dynamic constant math to Hercules.

• IR definitions
• Parsing (what syntax do people like for the IR? I used a prefix function notation like +(x, y) but this doesn't necessarily fit well with the syntax of the rest of the IR)
• Type checking

Marked as Draft until I implement Juno code-gen for dynamic constant math.

juno_frontend/examples/cava.jn

@@ -120,9 +120,9 @@ fn denoise<row : usize, col : usize>(input : f32[CHAN, row, col]) -> f32[CHAN, r
       for c = 0 to col {
         if r >= 1 && r < row - 1 && c >= 1 && c < col - 1 {
           let filter : f32[3][3]; // same as [3, 3]
-          for i = -1 to 2 by 1 {
-            for j = -1 to 2 by 1 {
-              filter[i+1, j+1] = input[chan, r + i, c + j];
+          for i = 0 to 3 by 1 {
+            for j = 0 to 3 by 1 {
+              filter[i, j] = input[chan, r + i - 1, c + j - 1];
             }
           }
           res[chan, r, c] = medianMatrix::<f32, 3, 3>(filter);