Release 0.4.0

• Merge pull request #289 from oceanprotocol/feature/statstics_history (9d33417)
• moved all address checks to lowercase (a82a8e6)
• optimizations in FRE (dfceb09)
• values in number, not Wei (8156687)
• values in number, not Wei (8eaaaa3)
• remove toLowerCase() workaround (e7c140e)
• debug (bad9f66)
• lowercase account testing (a2fbbb3)
• Update src/balancer/OceanPool.ts (25673f9)
• optimizations (24e5e37)
• optimizations (9195cfb)
• optimizations (ca5d2c2)
• optimizations (a1916b0)
• small refactor (6f645d6)
• typing updates, small refactor (54cb529)
• getEventData refactor (63e01ee)
• typo (122fc40)
• Merge branch 'main' into feature/statstics_history (8bd80d9)
• add interface for PoolLogs & Actions (ee53e5f)
• fix tests (43dee2f)
• Merge branch 'feature/statstics_history' of https://github.com/oceanprotocol/ocean-lib-js into feature/statstics_history (ffdd8f5)
• add getPoolsbyCreator (1f15a67)
• fix lint (34daf5c)
• add stats (c6a9f7d)
• fix lint (fe570b7)
• add stats (b815fbf)