Support double value in string format for GeoPoint

[penghuo]

Signed-off-by: Peng Huo penghuo@gmail.com

Issue #, if available: #1064

Description of changes:

1. Support the double value in string format for GeoPoint.
   Note: we are not supporting all the GeoPoint listed in here. We only support two type of geopoint now.

PUT my-index-000001/_doc/1
{
  "text": "Geo-point as an object",
  "location": { 
    "lat": 41.12,
    "lon": -71.34
  }
}
PUT my-index-000001/_doc/2
{
  "text": "Geo-point as an object",
  "location": { 
    "lat": "41.12",
    "lon": "-71.34"
  }
}

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

[codecov]

Codecov Report

Merging #1066 (4e196f5) into develop (4afff39) will increase coverage by 0.00%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##             develop    #1066   +/-   ##
==========================================
  Coverage      99.89%   99.89%           
- Complexity      2408     2413    +5     
==========================================
  Files            236      236           
  Lines           5484     5504   +20     
  Branches         327      329    +2     
==========================================
+ Hits            5478     5498   +20     
  Misses             5        5           
  Partials           1        1           

Impacted Files	Coverage Δ	Complexity Δ
...ticsearch/data/utils/ElasticsearchJsonContent.java	100.00% <100.00%> (ø)	27.00 <6.00> (+5.00)

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 4afff39...4e196f5. Read the comment docs.

[dai-chen]

Thanks for the fix!