API for location tag and location openSRP to openMRS

[proshantokuet]

### Release feature
Location Tag:
create location tag
update location tag
list of location tag

Location:
create location
update location
list of location
search location
#15

[coveralls]

Pull Request Test Coverage Report for Build 78

• 1 of 102 (0.98%) changed or added relevant lines in 3 files are covered.
• 1 unchanged line in 1 file lost coverage.
• Overall coverage decreased (-0.4%) to 8.504%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
src/main/java/org/opensrp/connector/openmrs/service/OpenmrsService.java	0	14	0.0%
src/main/java/org/opensrp/connector/openmrs/service/OpenmrsLocationTagService.java	0	43	0.0%
src/main/java/org/opensrp/connector/openmrs/service/OpenmrsLocationService.java	1	45	2.22%

Files with Coverage Reduction	New Missed Lines	%
src/main/java/org/opensrp/connector/openmrs/service/OpenmrsLocationService.java	1	22.58%

Totals
Change from base Build 61:	-0.4%
Covered Lines:	258
Relevant Lines:	3034

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💛 - Coveralls

[ellykits]

@proshantokuet You may be interested in #19
We had a similar requirement to query location tags (what the code allows you to do is pass a valid tag or list of tags then it will return a list of locations matching that).