Add simd.{sqrt, ceil, floor, trunc, nearest}

src/types.cpp

@@ -363,6 +363,9 @@ enum : int {
 	MATRIX_ELEMENT_COUNT_MIN = 1,
 	MATRIX_ELEMENT_COUNT_MAX = 16,
 	MATRIX_ELEMENT_MAX_SIZE = MATRIX_ELEMENT_COUNT_MAX * (2 * 8), // complex128
+
+	SIMD_ELEMENT_COUNT_MIN = 1,
+	SIMD_ELEMENT_COUNT_MAX = 64,
 };