Add myOwn Testnet (#555)

* Create eip155-1609610177.json

* Rename eip155-1609610177.json to eip155-1337.json

* Update eip155-1337.json

change Name and Symbol

* Update eip155-1337.json

change shortname

* Update and rename eip155-1337.json to eip155-9999.json

Updates are:
- rpc address
- name
- symbol
- shortname
- chain ID
- network ID

_data/chains/eip155-9999.json

@@ -0,0 +1,18 @@
+{
+  "name": "myOwn Testnet",
+  "chain": "myOwn",
+  "network": "testnet",
+  "rpc": [
+    "https://fe693b0f-b1c4-45ec-aac1-5c4b913fc51e.cdegswtfk0ji0uq1ym3r3guz6.ep.stage.bccloud.net:8545"
+  ],
+  "faucets": [],
+  "nativeCurrency": {
+    "name": "MYN",
+    "symbol": "MYN",
+    "decimals": 18
+  },
+  "infoURL": "https://docs.bccloud.net/",
+  "shortName": "myn",
+  "chainId": 9999,
+  "networkId": 9999
+}