Add ACS 5-year Subject Table S1251 pipeline scripts and specs

Author: abhishekjaisw

scripts/us_census/acs5yr/subject_tables/S1251/test/S1251_cleaned.csv

@@ -2,16 +2,16 @@
     "summary": {
         "column map generator commit SHA": "",
         "data processing script commit SHA": "",
-        "total StatVarObservations": 108
+        "total StatVarObservations": 9288
     },
-    "2012": {
-        "filename": "S1251_input/ACSST5Y2012.S1251_data_with_overlays_1111-11-11T111111.csv",
+    "2024": {
+        "filename": "ACSST5Y2024.S1251_data_with_overlays_1111-11-11T111111.csv",
         "number of columns in dataset": 142,
-        "number of rows in dataset": 2,
+        "number of rows in dataset": 205944,
         "number of statVars generated for columns": 108,
-        "number of observations": 108,
+        "number of observations": 9288,
         "number of unique StatVars with observations": 108,
-        "number of unique geos": 1,
+        "number of unique geos": 86,
         "number of StatVars in mcf_dict": 108
     }
 }