Implemented manifest generation for EB full curation in ingest_envoy

Along the way:

• Added tests for partial-curation manifest generation for ingest_envoy
• Separated IngestionManifestBuilder's directory-to-search (staging_source_dir for ingestion, curation_source for curation) from the directory it wants to put its manifest in since partial curation doesn't always have the former.

apps/cli/executables/pexable/ingest_envoy/test/examples/full_curation_evla_image_manifest.json

+{
+  "parameters": {
+    "telescope": "EVLA",
+    "ngas_ingest": "false",
+    "ingestion_path": "/lustre/aoc/cluster/pipeline/dsoc-dev/workspaces/staging/tmpx_ratuqh",
+    "additional_metadata": "aux_image_metadata.json"
+  },
+  "reingest": {
+    "locator": "uid://I/am/a/locator",
+    "type": "fits_image"
+  },
+  "input_group": {
+    "science_products": [
+      {
+        "locator": "uid://evla/calibration/ea93dae5-3495-47fa-887d-4be2852f5f14"
+      }
+    ]
+  },
+  "output_group": {
+    "science_products": [
+      {
+        "type": "fits_image",
+        "filename": "16B-069.MJD57713.51329133102.J1522+3934_sci.K_band.cont.I.pbcor.tt0.fits",
+        "ancillary_products": [
+          {
+            "type": "primary_beam",
+            "filename": "16B-069.MJD57713.51329133102.J1522+3934_sci.K_band.cont.I.pb.tt0.fits"
+          },
+          {
+            "type": "clean_mask",
+            "filename": "16B-069.MJD57713.51329133102.J1522+3934_sci.K_band.cont.I.mask.fits"
+          },
+          {
+            "type": "spectral_index",
+            "filename": "16B-069.MJD57713.51329133102.J1522+3934_sci.K_band.cont.I.alpha.error.fits"
+          },
+          {
+            "type": "spectral_index",
+            "filename": "16B-069.MJD57713.51329133102.J1522+3934_sci.K_band.cont.I.alpha.fits"
+          },
+          {
+            "type": "fits_image",
+            "filename": "16B-069.MJD57713.51329133102.J1522+3934_sci.K_band.cont.I.tt0.fits"
+          },
+          {
+            "type": "fits_image",
+            "filename": "16B-069.MJD57713.51329133102.J1522+3934_sci.K_band.cont.I.tt1.fits"
+          }
+        ]
+      },
+      {
+        "type": "fits_image",
+        "filename": "16B-069.MJD57713.51329133102.J1522+3934_sci.X_band.cont.I.pbcor.tt0.fits",
+        "ancillary_products": [
+          {
+            "type": "primary_beam",
+            "filename": "16B-069.MJD57713.51329133102.J1522+3934_sci.X_band.cont.I.pb.tt0.fits"
+          },
+          {
+            "type": "clean_mask",
+            "filename": "16B-069.MJD57713.51329133102.J1522+3934_sci.X_band.cont.I.mask.fits"
+          },
+          {
+            "type": "spectral_index",
+            "filename": "16B-069.MJD57713.51329133102.J1522+3934_sci.X_band.cont.I.alpha.error.fits"
+          },
+          {
+            "type": "spectral_index",
+            "filename": "16B-069.MJD57713.51329133102.J1522+3934_sci.X_band.cont.I.alpha.fits"
+          },
+          {
+            "type": "fits_image",
+            "filename": "16B-069.MJD57713.51329133102.J1522+3934_sci.X_band.cont.I.tt0.fits"
+          },
+          {
+            "type": "fits_image",
+            "filename": "16B-069.MJD57713.51329133102.J1522+3934_sci.X_band.cont.I.tt1.fits"
+          }
+        ]
+      }
+    ],
+    "ancillary_products": [
+      {
+        "type": "pipeline_weblog",
+        "filename": "weblog.tgz"
+      },
+      {
+        "type": "ingestion_artifacts",
+        "filename": "ingestion_artifacts_2021_08_04T01_57_08.564.tar"
+      },
+      {
+        "type": "pipeline_artifacts",
+        "filename": "pipeline_artifacts_2021_08_04T15_46_02.tar"
+      }
+    ]
+  }
+}