Adds method to wait for Dapr sidecar.

[artursouza]

Description

Adds method to wait for Dapr sidecar.

Issue reference

We strive to have all PR being opened based on an issue, where the problem or feature have been discussed prior to implementation.

Please reference the issue this PR will close: #377

Checklist

Please make sure you've completed the relevant tasks for this PR, out of the following list:

• Code compiles correctly
• Created/updated tests
• Extended the documentation

[codecov]

Codecov Report

Merging #433 (2db73a9) into master (1a6675a) will decrease coverage by 0.10%.
The diff coverage is 68.42%.

@@             Coverage Diff              @@
##             master     #433      +/-   ##
============================================
- Coverage     83.39%   83.28%   -0.11%     
- Complexity      840      850      +10     
============================================
  Files            72       74       +2     
  Lines          2481     2519      +38     
  Branches        254      256       +2     
============================================
+ Hits           2069     2098      +29     
- Misses          292      299       +7     
- Partials        120      122       +2     

Impacted Files	Coverage Δ	Complexity Δ
sdk/src/main/java/io/dapr/utils/Retry.java	50.00% <50.00%> (ø)	1.00 <1.00> (?)
...k/src/main/java/io/dapr/client/DaprClientGrpc.java	83.54% <66.66%> (-0.34%)	88.00 <2.00> (+2.00)	⬇️
...k/src/main/java/io/dapr/client/DaprClientHttp.java	92.06% <66.66%> (-0.62%)	80.00 <2.00> (+2.00)	⬇️
sdk/src/main/java/io/dapr/utils/NetworkUtils.java	100.00% <100.00%> (ø)	2.00 <2.00> (?)
sdk/src/main/java/io/dapr/config/Property.java	68.42% <0.00%> (+10.52%)	7.00% <0.00%> (+2.00%)
.../src/main/java/io/dapr/config/IntegerProperty.java	100.00% <0.00%> (+33.33%)	2.00% <0.00%> (+1.00%)

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[wcs1only]

LGTM