Add RST token info and rUSD token info for Realio.fund project (#9756)

* Add RST logo and info

RST is issued as a security token to represent ownership of the Realio Ecosystem. The Realio Security Token (RST) represents an investment in the platform and ecosystem and offers a revenue stream in the form of profit share.

* rUSD logo and info

rUSD is a USD pegged stablecoin, backed 1-to-1 with U.S. dollars held in an account with PrimeTrust, an institutional quality custodian and trust company based in the U.S.

blockchains/ethereum/assets/0x1a76bfFD6D1FC1660e1d0E0552Fde51ddbB120CF/info.json

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+{
+  "name":"Realio Security Token",
+  "website":"https://realio.fund",
+  "description":"RST is a security token to represent ownership of the Realio.fund Ecosystem. Realio is an end-to-end platform for compliant issuance, p2p trading and life-cycle management of digital assets.",
+  "explorer": "https://etherscan.io/token/0x1a76bffd6d1fc1660e1d0e0552fde51ddbb120cf",
+  "type": "ERC20",
+  "symbol": "RST",
+  "decimals": 18,
+  "status": "active",
+  "id": "0x1a76bfFD6D1FC1660e1d0E0552Fde51ddbB120CF"
+}

blockchains/ethereum/assets/0xF9A2D7E60a3297E513317AD1d7Ce101CC4C6C8F6/info.json

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+{
+  "name":"Realio Network USD Stablecoin",
+  "website":"https://realio.fund",
+  "description":"rUSD is a USD pegged stablecoin, backed 1-to-1 with U.S. dollars held in an account with PrimeTrust, an institutional quality custodian and trust company based in the U.S.",
+  "explorer": "https://etherscan.io/token/0xf9a2d7e60a3297e513317ad1d7ce101cc4c6c8f6",
+  "type": "ERC20",
+  "symbol": "rUSD",
+  "decimals": 18,
+  "status": "active",
+  "id": "0xF9A2D7E60a3297E513317AD1d7Ce101CC4C6C8F6"
+}