Update coordinator, call all api update functions

- Common:
	- Rename Block.EthBlockNum to Block.Num to avoid unneeded repetition
- API:
	- Add UpdateNetworkInfoBlock to update just block information, to be
	  used when the node is not yet synchronized
- Node:
	- Call API.UpdateMetrics and UpdateRecommendedFee in a loop, with
	  configurable time intervals
- Synchronizer:
	- When mapping events by TxHash, use an array to support the possibility
	  of multiple calls of the same function happening in the same
	  transaction (for example, a smart contract in a single transaction
	  could call withdraw with delay twice, which would generate 2 withdraw
	  events, and 2 deposit events).
	- In Stats, keep entire LastBlock instead of just the blockNum
	- In Stats, add lastL1BatchBlock
	- Test Stats and SCVars
- Coordinator:
	- Enable writing the BatchInfo in every step of the pipeline to disk
	  (with JSON text files) for debugging purposes.
	- Move the Pipeline functionality from the Coordinator to its own struct
	  (Pipeline)
	- Implement shouldL1lL2Batch
	- In TxManager, implement logic to perform several attempts when doing
	  ethereum node RPC calls before considering the error. (Both for calls
	  to forgeBatch and transaction receipt)
	- In TxManager, reorganize the flow and note the specific points in
	  which actions are made when err != nil
- HistoryDB:
	- Implement GetLastL1BatchBlockNum: returns the blockNum of the latest
	  forged l1Batch, to help the coordinator decide when to forge an
	  L1Batch.
- EthereumClient and test.Client:
	- Update EthBlockByNumber to return the last block when the passed
	  number is -1.

test/til/txs.go

@@ -31,7 +31,7 @@ func newBatchData(batchNum int) common.BatchData {
 func newBlock(blockNum int64) common.BlockData {
 	return common.BlockData{
 		Block: common.Block{
-			EthBlockNum: blockNum,
+			Num: blockNum,
 		},
 		Rollup: common.RollupData{
 			L1UserTxs: []common.L1Tx{},
@@ -711,7 +711,7 @@ func (tc *Context) FillBlocksExtra(blocks []common.BlockData, cfg *ConfigExtra)
 		block := &blocks[i]
 		for j := range block.Rollup.Batches {
 			batch := &block.Rollup.Batches[j]
-			batch.Batch.EthBlockNum = block.Block.EthBlockNum
+			batch.Batch.EthBlockNum = block.Block.Num
 			// til doesn't fill the batch forger addr
 			batch.Batch.ForgerAddr = cfg.BootCoordAddr
 			if batch.L1Batch {