0.3.x (#893)

* add examples for arctern_spark

* add test

* pylint

* pylint

* vega and render class rename

* add VegaUniqueValueMap

* add unique value map vega test

* fix vega unique value

* add unique_value_infos_numeric_map and SetColor api

* wrap UniqueValueMap api

* add unittest

* improve unique value map opacity

* code format

* add unittest

* add unique_value_choroplethmap

* fix doc-test indentation bug

* add unique_value_map test

* fix doc-test bug

* fix doc-test bug

* fix doc-test bug

* attempt to add commit

* [skip ci] fix doc-test bug

* pylint

* add unique value choroplethmap pytest

* fix cpp vega test

* code format

* code format

* add test in comment

* [skip ci] fix doctest bug

* [skip ci] change unique render api name

* [skip ci] fix comment

* fix pylint

* fix pylint

* fix pylint

* [skip ci] fix doctest bug

* [skip ci] retrigger ci

Co-authored-by: xiaocai2333 <2363080731@qq.com>
Co-authored-by: bigsheeper <42060877+bigsheeper@users.noreply.github.com>
Co-authored-by: xge-zilliz <xi.ge@zilliz.com>

cpp/src/CMakeLists.txt

@@ -161,4 +161,3 @@ target_link_libraries(arctern
 
 install(TARGETS arctern
         DESTINATION lib)
-