Add logo.png and info.json for Blocksquare token (#1437)

* Add logo.png and info.json for Blocksquare token

* fix json

Co-authored-by: Mykola <kolya182@gmail.com>

blockchains/ethereum/assets/0x509A38b7a1cC0dcd83Aa9d06214663D9eC7c7F4a/info.json

@@ -0,0 +1,24 @@
+{
+    "name": "Blocksquare",
+    "website": "https://blocksquare.io/",
+    "source_code": "https://github.com/blocksquare",
+    "short_description": "Increase value and liquidity of real estate properties in your portfolio.",
+    "description": "Increase value and liquidity of real estate properties in your portfolio.",
+    "socials": [
+        {
+            "name": "Twitter",
+            "url": "https://twitter.com/blocksquare",
+            "handle": "blocksquare_io"
+        },
+	    {
+            "name": "Linkedin",
+            "url": "https://linkedin.com/company/blocksquare/"
+        },
+        {
+            "name": "Reddit",
+            "url": "https://www.reddit.com/r/Blocksquare_io/",
+            "handle": "Blocksquare_io"
+        }
+    ],
+    "data_source": "crowd"
+}