Feat #43: Adds support for ohcl and pair endpoints

[Micrograx]

Summary

This PR includes support for OHLC candles and dex pairs endpoints from the defi markets category

Type of Change

Please mark the relevant option(s) for your pull request:

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Code refactoring (improving code quality without changing its behavior)
• Documentation update (adding or updating documentation related to the project)

Checklist

Please ensure that your pull request meets the following criteria:

• I have read the Contributing Guide
• My code follows the project's coding style and best practices
• My code is appropriately commented and includes relevant documentation
• I have added tests to cover my changes
• All new and existing tests pass
• I have updated the documentation, if necessary

Testing

No new tests were added

Observations

The OHLC endpoint has more query parameters that were not included in this PR

[sourabhxyz]

Thanks @Micrograx for bringing this change :)

[sourabhxyz]

I would usually prefer just "Markets" as it matches exactly with path name but of course not a big deal.

[sourabhxyz]

JSON instances could have been conveniently derived using deriving-aeson like done here

haskell-sdk/src/Maestro/Types/V1/Addresses.hs

Lines 25 to 28 in 68a59cd

	-- | Denotes network for the entity in question, such as address.
	data NetworkId = NIDMainnet | NIDTestnet
	deriving stock (Show, Eq, Ord, Generic)
	deriving (FromJSON, ToJSON) via CustomJSON '[ConstructorTagModifier '[StripPrefix "NID", LowerFirst]] NetworkId

.

[sourabhxyz]

SDK is more inclined towards using Text.

[sourabhxyz]

The PR looks really good, great work @Micrograx.

@Vardominator Could you merge it? I'll bring updated version with changelog & minor improvements in another PR.