implemented consensus/types

[ABD-AZE]

Resolves #19

1. Implemented all the types in the consensus/types directory.
2. The struct fields are capitalized to be exported, If exporting them is not required we can change them later after testing (Currently all struct fields are exported)
3. Size of some containers was to be kept less than some max value so currently I have allotted them fixed size i.e. the maximum size. In future if we come up with some memory efficient alternative it can be changed.
4. Serialization and Deserialization methods are defined for the required structs. (Require Review on whether it is correct or not).

[star-gazer111]

@ABD-AZE any updates on the requested changes?

[ABD-AZE]

@ABD-AZE any updates on the requested changes?

I'll commit the changes by EOTD

[ABD-AZE]

@ABD-AZE any updates on the requested changes?

I have just removed the serializaion and deserialization functions. Wherever the need for de/serializing would be required it can be done by importing from the packages mentioned in the review. In this package there was no such need for the functions to be imported.

[star-gazer111]

@ABD-AZE any updates on the requested changes?

I have just removed the serializaion and deserialization functions. Wherever the need for de/serializing would be required it can be done by importing from the packages mentioned in the review. In this package there was no such need for the functions to be imported.

Are there any more changes you plan to do in this PR?

[ABD-AZE]

@ABD-AZE any updates on the requested changes?

I have just removed the serializaion and deserialization functions. Wherever the need for de/serializing would be required it can be done by importing from the packages mentioned in the review. In this package there was no such need for the functions to be imported.

Are there any more changes you plan to do in this PR?

Nothing as of now.