Pruning for: exec, log_index, tx_lookup, history stages (#2399)

* Pruning for: exec, log_index, tx_lookup, history stages

* Pruning for: exec, log_index, tx_lookup, history stages

* Pruning for: exec, log_index, tx_lookup, history stages

* Pruning for: exec, log_index, tx_lookup, history stages

* add tvm flag

* save

* db migration for storage mode
add flag --prune=
remove flag --storage-mode=
add flag --experiments=tevm,...
rename integration set_storage_mode to set_prune

* fix

* forward move of stages must skip everything before PruneTo

* keep in db progress of prune method

* keep in db progress of prune method

* simplify logs

* simplify logs

* simplify logs

* fix test

* simplify logs

* simplify logs

* simplify logs

* simplify logs

* remove callTraceSet as dupsort
use etl transform for txlookup prune
remove some logs

* cleanup tests a bit

* print_stages and eth_sync to show prune progress

* fix print_stages

* add readme about --prune.to flag

* more docs

* add --prune.history.older and other flags support

* fix migration on empty db

* better toString

* better toString