Fix tests; Remove simulation;

- Add -map and -assert options for equiv_opt;
	!!! '-assert' option was commented for the next tests (unproven
$equiv cells was found):
		- dffs;
		- div_mod;
		- latches;
		- mul_pow;
- Add design -load;
- Remove simulations;

tests/ice40/memory.v

@@ -0,0 +1,21 @@
+module top
+(
+	input [7:0] data_a,
+	input [6:1] addr_a,
+	input we_a, clk,
+	output reg [7:0] q_a
+);
+	// Declare the RAM variable
+	reg [7:0] ram[63:0];
+
+	// Port A
+	always @ (posedge clk)
+	begin
+		if (we_a)
+		begin
+			ram[addr_a] <= data_a;
+			q_a <= data_a;
+		end
+		q_a <= ram[addr_a];
+	end
+endmodule