eth: added trace_call to trace on top of arbitrary blocks (#21338)

* eth: Added TraceTransactionPending

* eth: Implement Trace_Call, remove traceTxPending

* eth: debug_call -> debug_traceCall, recompute tx environment if pruned

* eth: fix nil panic

* eth: improve block retrieving logic in tracers

* internal/web3ext: add debug_traceCall to console

internal/web3ext/web3ext.go

@@ -429,6 +429,12 @@ web3._extend({
 			params: 2,
 			inputFormatter: [null, null]
 		}),
+		new web3._extend.Method({
+			name: 'traceCall',
+			call: 'debug_traceCall',
+			params: 3,
+			inputFormatter: [null, null, null]
+		}),
 		new web3._extend.Method({
 			name: 'preimage',
 			call: 'debug_preimage',