Chains config refactoring (#311)

Generate code from chains config

foundation/src/main/kotlin/org/drpc/chainsconfig/ChainsConfig.kt

@@ -0,0 +1,55 @@
+package io.emeraldpay.dshackle.config
+
+import io.emeraldpay.dshackle.foundation.ChainOptions
+import java.time.Duration
+
+data class ChainsConfig(private val chains: List<ChainConfig>) : Iterable<ChainsConfig.ChainConfig> {
+    private val chainMap: Map<String, ChainConfig> = chains.fold(emptyMap()) { acc, item ->
+        acc.plus(item.shortNames.map { Pair(it, item) })
+    }
+
+    override fun iterator(): Iterator<ChainConfig> {
+        return chains.iterator()
+    }
+    companion object {
+        @JvmStatic
+        fun default(): ChainsConfig = ChainsConfig(emptyList())
+    }
+
+    data class ChainConfig(
+        val expectedBlockTime: Duration,
+        val syncingLagSize: Int,
+        val laggingLagSize: Int,
+        val options: ChainOptions.PartialOptions,
+        val chainId: String,
+        val netVersion: Long,
+        val grpcId: Int,
+        val code: String,
+        val shortNames: List<String>,
+        val callLimitContract: String?,
+        val id: String,
+        val blockchain: String,
+    ) {
+        companion object {
+            @JvmStatic
+            fun default() = ChainConfig(
+                Duration.ofSeconds(12),
+                6,
+                1,
+                ChainOptions.PartialOptions(),
+                "0x0",
+                0,
+                0,
+                "UNKNOWN",
+                emptyList(),
+                null,
+                "undefined",
+                "undefined",
+            )
+        }
+    }
+
+    fun resolve(chain: String): ChainConfig {
+        return chainMap[chain] ?: ChainConfig.default()
+    }
+}