Bug fix#1849

[happyinsect]

dataType := gfile.ExtName(usedFileName) usedFileName is always "config" and dataType is "",usedFileName should be filePath instead.

Add support for properties config file.

[codecov-commenter]

Codecov Report

Merging #1851 (6b61a1e) into master (0e2a007) will increase coverage by 0.01%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master    #1851      +/-   ##
==========================================
+ Coverage   73.47%   73.49%   +0.01%     
==========================================
  Files         495      495              
  Lines       44292    44336      +44     
==========================================
+ Hits        32545    32584      +39     
- Misses       9787     9793       +6     
+ Partials     1960     1959       -1     

Flag	Coverage Δ
go-1.15	73.47% <100.00%> (+0.02%)	⬆️
go-1.16	73.46% <100.00%> (+0.01%)	⬆️
go-1.17	73.48% <100.00%> (+0.02%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
os/gcfg/gcfg_adapter_file.go	72.51% <100.00%> (ø)
os/gfsnotify/gfsnotify_watcher_loop.go	78.15% <0.00%> (-5.05%)	⬇️
net/gclient/gclient_response.go	72.22% <0.00%> (-3.46%)	⬇️
os/gcmd/gcmd_parser.go	92.90% <0.00%> (-2.59%)	⬇️
protocol/goai/goai_shema.go	70.92% <0.00%> (-2.08%)	⬇️
os/glog/glog_logger_rotate.go	65.85% <0.00%> (-1.47%)	⬇️
os/gcmd/gcmd_command_object.go	51.41% <0.00%> (-0.99%)	⬇️
os/gcmd/gcmd_command.go	100.00% <0.00%> (ø)
protocol/goai/goai_parameter_ref.go	80.70% <0.00%> (+0.34%)	⬆️
net/gtcp/gtcp_conn.go	31.65% <0.00%> (+0.50%)	⬆️
... and 7 more

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