New streamer symbol fields under strike for NestedFutureOptionChainExpiration

[tirthb]

"Strike" under "NestedFutureOptionChainExpiration" is missing call-streamer-symbol and put-streamer-symbol

Example JSON:
{
"strike-price": "4400.0",
"call": "./ESU4 EW3N4 240719C4400",
"call-streamer-symbol": "./EW3N24C4400:XCME",
"put": "./ESU4 EW3N4 240719P4400",
"put-streamer-symbol": "./EW3N24P4400:XCME"
}