Split up mode of operations in Blockchain

[jaRulez]

User Story

• As a Developer,
• I want to split up the mode of operations in our Blockchain,
• to relieve our memory and enable a higher operating speed of our local machine.

Acceptance Criteria

• Split up read and write functions
• Read Mode: The whole data must be searched for the right Block
• Write Mode: For the write Mode only the last Block is necessary to hold in RAM

Definition of Done

Feature Code Review has been completed and passed
a) Code is completley implemented
b) Code is structured according to our coding guidelines and commented
c) Code is checked into repository
d) Documentation is updated
Cleanliness of Code
JUnit Tests have been written and passed (if required)
No critical bugs are open
Feature branch has been tagged and merged
Feature Code has been included into the release (candidate)
Product Owners accept Feature