Fixed behavior of multi-step builds.

* Output from the main strawboss executable is properly directed to stdout
  and stderr.
* Added threshold logging to strawboss core functions.
* Fixed a bug in the way dependent steps were detected and executed.
  The logic for checking if prior steps had already been executed was only
  executed once when the initial step was prepared, not for any of the
  dependent steps. This logic has been moved into the main work block for
  executing steps.
* Renamed `initiateRun` to `run` and  `runStep` to `doRun` to be more accurate.
* Dependent steps get their owng, independent copy of the workspace.
* Updated the test project to provide a test target.

src/test/nim/functional/tcore.nim

@@ -5,3 +5,15 @@ from langutils import sameContents
 import ../testutil
 import ../../../main/nim/strawbosspkg/configuration
 
+let cfgFilePath = "src/test/json/strawboss.config.json"
+let cfg = loadStrawBossConfig(cfgFilePath)
+let TIMEOUT = 2.minutes
+
+suite "strawboss core":
+
+  # Suite setup: extract test project
+  let testProjTempDir = mkdir()
+  let testProjTarFile = newTarFile("src/test/test-project.tar.gz:)
+  let testProjName = "test-project"
+  testProjTarFile.extract(testProjTempDir)
+

src/test/nim/unit/tconfiguration.nim

@@ -1,4 +1,4 @@
-import json, strtabs, tables, unittest, uuids
+import json, strtabs, times, tables, unittest, uuids
 
 from langutils import sameContents
 import ../../../main/nim/strawbosspkg/configuration
@@ -21,11 +21,12 @@ suite "load and save configuration objects":
 
   test "parseRunRequest":
     let rr1 = RunRequest(
-      id: genUUID(),
+      runId: genUUID(),
       projectName: testProjDef.name,
       stepName: "build",
       buildRef: "master",
       workspaceDir: "/no-real/dir",
+      timestamp: getLocalTime(getTime()),
       forceRebuild: true)
 
     let rrStr = $rr1
@@ -143,5 +144,5 @@ suite "load and save configuration objects":
 
     check:
       st.runId == "90843e0c-6113-4462-af33-a89ff9731031"
-      st.state == "failed"
+      st.state == BuildState.failed
       st.details == "some very good reason"