Merge pull request #1150 from YosysHQ/eddie/script_from_wire

Add "script -select [selection]" to allow commands to be taken from wires

tests/various/script.ys

@@ -0,0 +1,20 @@
+read_verilog -formal <<EOT
+    module top;
+        foo bar();
+        foo asdf();
+        winnie the_pooh();
+
+        wire [1023:0] _RUNME0 = "select -assert-count 2 t:foo";
+        wire [1023:0] _RUNME1 = "select -assert-count 1 t:winnie";
+    endmodule
+
+    module other;
+        wire [1023:0] _DELETE = "cd; delete c:bar";
+    endmodule
+EOT
+
+script -scriptwire w:_RUNME*
+
+select w:_DELETE
+script -scriptwire
+select -assert-count 1 t:foo