For morden osm server, Tile level has been extended to 20 from 18.

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1.declare multi tile layers in ini file:
[tiles]
name0=OSM
name1=google
name2=bing

2.set tile server addresses, Image Alpha Channel in UI

 std::move is removed from return  keyword.

for a.tile.openstreetmap.org\b.tile.openstreetmap.org
c.tile.openstreetmap.org
using Y % 3 == 0,1,2 ->a,b,c

We find a serious BUG, that in multi-layer Qt widget app, signal auto connection approach will fail if two QPushButton (for example) has same object name.
Qt deigner will automaticlly avoid using same object name for two different controls. However, when a widget contains many controls is created as a child widget in mainFrame, auto connection approach will only match first control for one slot.
To slove this problem, all control names should be changed to different style.

Signed-off-by: goldenhawking <goldenhawking@163.com>

1.We export osm_frame_widget to DLL as a QWidget extension.Also, a designer plugin is introduced for UI desinger convient.
2.The grid plugin is improved for quickly mark insert, to demo how these 2 layers(grid and geomarker) communicate with each other.

2. add OCX interface to set local cache path and tile expire value.
Signed-off-by: goldenhawking <goldenhawking@163.com>

2. set 3 method, perpare for call_func.
Signed-off-by: goldenhawking <goldenhawking@163.com>

2. Add a Item clicked event, for  geomarker.

2.make a copy painting , sloved +180 -180 polygon drawing problem.