index community tokens

[vibern0]

listen to https://github.com/impactMarket/impact-market-smart-contracts/pull/115/files#diff-559737589b443db342076a1793303db188c3c5373111b8c2cc63041c0e2ccc97R623
community entity https://github.com/impactMarket/subgraph/blob/main/schema.graphql#L4

[vibern0]

new changes
https://github.com/impactMarket/impact-market-smart-contracts/pull/126/files#diff-559737589b443db342076a1793303db188c3c5373111b8c2cc63041c0e2ccc97R498