Update Result version

[kittinunf]

Description

These PR updates Result library to 2.0.0 so that it uses Kotlin 1.3.+ across the board.

Type of change

Check all that apply

• Bug fix (a non-breaking change which fixes an issue)
• New feature (a non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Refactoring (a change which changes the current internal or external interface)
• This change requires a documentation update

How Has This Been Tested?

In case you did not include tests describe why you and how you have verified the
changes, with instructions so we can reproduce. If you have added comprehensive
tests for your changes, you may omit this section.

Checklist:

• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation, if necessary
• My changes generate no new compiler warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• Inspect the bytecode viewer, including reasoning why

[codecov]

Codecov Report

Merging #540 into master will not change coverage.
The diff coverage is n/a.

@@            Coverage Diff            @@
##             master     #540   +/-   ##
=========================================
  Coverage     73.44%   73.44%           
  Complexity      302      302           
=========================================
  Files            48       48           
  Lines          1235     1235           
  Branches        184      184           
=========================================
  Hits            907      907           
  Misses          245      245           
  Partials         83       83

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