R4R: Added querier for auth module

[ironman0x7b2]

• Targeted PR against correct branch (see CONTRIBUTING.md)

• Linked to github-issue with discussion and accepted design OR link to spec that describes this work.

• Wrote tests

• Updated relevant documentation (docs/)

• Added entries in PENDING.md with issue #

• rereviewed Files changed in the github PR explorer

---

For Admin Use:

• Added appropriate labels to PR (ex. wip, ready-for-review, docs)
• Reviewers Assigned
• Squashed all commits, uses message "Merge pull request #XYZ: [title]" (coding standards)

[codecov]

Codecov Report

Merging #3767 into develop will decrease coverage by 0.01%.
The diff coverage is 59.09%.

@@             Coverage Diff             @@
##           develop    #3767      +/-   ##
===========================================
- Coverage    61.41%   61.39%   -0.02%     
===========================================
  Files          189      190       +1     
  Lines        14098    14120      +22     
===========================================
+ Hits          8658     8669      +11     
- Misses        4884     4894      +10     
- Partials       556      557       +1

[alexanderbez]

Great! Thanks @ironman0x7b2. I left a few minor comments 👍

[alexanderbez]

Changes LGTM -- it just needs a pending log entry.

[jackzampolin]

--- FAIL: TestBonding (5.21s)
	Error Trace:	lcd_test.go:557
	Error:      	Not equal: 
	            	expected: 30000000.000000000000000000
	            	actual  : 29700000.000000000000000000
	            	
	            	Diff:
	            	--- Expected
	            	+++ Actual
	            	@@ -1,2 +1,2 @@
	            	-(types.Dec) 30000000.000000000000000000
	            	+(types.Dec) 29700000.000000000000000000
	            	 
	Test:       	TestBonding

[alexanderbez]

@jackzampolin nothing to do with this PR. It's an already existing regression: #3739