Got EVLA CMS restores working via casa_envoy, using casa_restorepipescript.py when it exists

Restores have been manually tested both with a PPR in the arguments (but no piperestorescript in the cal tar) and without one (with a piperestorescript in the cal tar). No other use-cases of casa_envoy have been manually tested.

To test restores with piperestorescript:

1. Copy the following from /lustre/aoc/cluster/pipeline/dsoc-dev/workspaces/skagan_testing/test_data/with_piperestorescript_2 into your own testing directory:
   1. rawdata/
   2. metadata.json
2. Add empty products and working directories
3. Remove rawdata/products
4. Call /lustre/aoc/cluster/pipeline/dsoc-dev/workspaces/skagan_testing/skagan-casa_envoy3 --restore metadata.json

Without piperestorescript (differences bolded):

1. Copy the following from /lustre/aoc/cluster/pipeline/dsoc-dev/workspaces/skagan_testing/test_data/sans_piperestorescript_with_ppr_in_args into your own testing directory:
   1. rawdata/
   2. metadata.json
   3. PPR.xml
2. Add empty products and working directories
3. Remove rawdata/products
4. Call /lustre/aoc/cluster/pipeline/dsoc-dev/workspaces/skagan_testing/skagan-casa_envoy3 --restore metadata.json PPR.xml

apps/cli/executables/pexable/casa_envoy/test/input_files/restore-PPR.xml

+<?xml version='1.0' encoding='UTF-8' standalone='yes'?>
+<ns2:SciPipeRequest xmlns:ns2="Common/pipelinescience/SciPipeRequest">
+  <ProjectSummary>
+    <ProposalCode>VLA/23B-215</ProposalCode>
+    <ProposalTitle>CONICS-VLA: CO(1-0) for the Cosmic Noon ISM Conditions Survey</ProposalTitle>
+    <PIName>Leindert Boogaard</PIName>
+    <Observatory>NRAO</Observatory>
+    <Telescope>EVLA</Telescope>
+    <ProcessingSite>Socorro</ProcessingSite>
+    <Operator>vlapipe</Operator>
+    <Mode>SCIENCE</Mode>
+    <Version>NGRH-ALMA-10_8</Version>
+    <CreationTime>2024-05-20T23:02:43</CreationTime>
+  </ProjectSummary>
+  <ProjectStructure>TBD</ProjectStructure>
+  <ProcessingRequests>
+    <RootDirectory>/tmp/workspaces_tmp</RootDirectory>
+    <ProcessingRequest>
+      <ProcessingIntents/>
+      <ProcessingProcedure>
+        <ProcessingCommand>
+          <Command>hifv_restoredata</Command>
+          <ParameterSet/>
+        </ProcessingCommand>
+        <ProcessingCommand>
+          <Command>hifv_statwt</Command>
+          <ParameterSet/>
+        </ProcessingCommand>
+      </ProcessingProcedure>
+      <DataSet>
+        <RelativePath>tmpiox5trbp</RelativePath>
+        <SdmIdentifier>brain_001.58099.678886747686</SdmIdentifier>
+        <DataType>asdm</DataType>
+      </DataSet>
+    </ProcessingRequest>
+  </ProcessingRequests>
+</ns2:SciPipeRequest>