Use `denormalized.tree` table to implement the routers under `/trees`

[dadiorchen]

We are using public.trees to query data for /trees but it is slow, we created new table to denormalize the data, so please use the new table to implement this API again.

Some notes:

• Prerequisite: https://github.com/Greenstand/treetracker-denormalization/issues/1
• Please checkout the denormalized branch to work on and to create pull request.
• More details about denormalization is here

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[BrookeTheExecutiveAnimalLover]

@Kpoke I would like to be assigned this issue :')

[dadiorchen]

@BrookeTheExecutiveAnimalLover the table is not there yet, @Kpoke is working on it.

[dadiorchen]

This issue is open for everyone

[dagmawig]

I will work on this.