Refactoring and many fixes to PR #378. (Broken)

This commit is broken due to a cleanup issue with NimScript eval.

tests/testCommand/testOverride/myTester.nim

@@ -0,0 +1 @@
+echo("overriden")

tests/testCommand/testOverride/pkga.nimble

@@ -0,0 +1,9 @@
+version       = "0.1.0"
+author        = "John Doe"
+description   = "Nimble Test"
+license       = "BSD"
+
+skipFiles = @["myTester.nim"]
+
+task test, "Custom tester":
+  exec "nim c -r myTester.nim"

tests/testCommand/testsFail/testing123.nim

@@ -0,0 +1,4 @@
+
+proc myFunc*() =
+    echo "Executing my func"
+

tests/testCommand/testsFail/testing123.nimble

@@ -0,0 +1,4 @@
+version       = "0.1.0"
+author        = "John Doe"
+description   = "Nimble Test"
+license       = "BSD"

tests/testCommand/testsFail/tests/a.nim

@@ -0,0 +1,6 @@
+import testing123, unittest
+
+test "can compile nimble":
+  echo "First test"
+  myFunc()
+

tests/testCommand/testsFail/tests/b.nim

@@ -0,0 +1,6 @@
+import testing123, unittest
+
+test "can compile nimble":
+  echo "Failing Second test"
+  assert(false)
+

tests/testCommand/testsFail/tests/c.nim

@@ -0,0 +1,7 @@
+import testing123, unittest
+
+test "can compile nimble":
+  echo "Third test"
+  myFunc()
+
+

tests/testCommand/testsPass/testing123.nim

@@ -0,0 +1,4 @@
+
+proc myFunc*() =
+    echo "Executing my func"
+

tests/testCommand/testsPass/testing123.nimble

@@ -0,0 +1,4 @@
+version       = "0.1.0"
+author        = "John Doe"
+description   = "Nimble Test"
+license       = "BSD"

tests/testCommand/testsPass/tests/one.nim

@@ -0,0 +1,6 @@
+import testing123, unittest
+
+test "can compile nimble":
+  echo "First test"
+  myFunc()
+

tests/testCommand/testsPass/tests/three.nim

@@ -0,0 +1,7 @@
+import testing123, unittest
+
+test "can compile nimble":
+  echo "Third test"
+  myFunc()
+
+

tests/testCommand/testsPass/tests/two.nim

@@ -0,0 +1,7 @@
+import testing123, unittest
+
+test "can compile nimble":
+  echo "Second test"
+  myFunc()
+
+