Added basics of LCPLegend and more controls for blocks. Added boilerplate for lcp/line-graph

blocks/package-lock.json

@@ -15,7 +15,8 @@
                 "@wordpress/i18n": "^4.0.0",
                 "ag-grid-community": "^31.3.4",
                 "ag-grid-react": "^31.0.1",
-                "d3": "^7.8.5"
+                "d3": "^7.8.5",
+                "papaparse": "^5.5.1"
             },
             "devDependencies": {
                 "@wordpress/scripts": "^26.0.0"
@@ -16917,6 +16918,12 @@
                 "node": ">= 14"
             }
         },
+        "node_modules/papaparse": {
+            "version": "5.5.1",
+            "resolved": "https://registry.npmjs.org/papaparse/-/papaparse-5.5.1.tgz",
+            "integrity": "sha512-EuEKUhyxrHVozD7g3/ztsJn6qaKse8RPfR6buNB2dMJvdtXNhcw8jccVi/LxNEY3HVrV6GO6Z4OoeCG9Iy9wpA==",
+            "license": "MIT"
+        },
         "node_modules/param-case": {
             "version": "3.0.4",
             "resolved": "https://registry.npmjs.org/param-case/-/param-case-3.0.4.tgz",