- solve parenting issues when trying to load a FlatScript from Menu -> File -> Scripting

- added a first new example script and added some files to work with
- added a new parameter that will store the home folder of the FlatCAM installation so we can access the example folder

assets/examples/files/test.gbr

@@ -0,0 +1,69 @@
+G04*
+G04 GERBER (RE)GENERATED BY FLATCAM v8.992 - www.flatcam.org - Version Date: 2020/05/01*
+G04 Filename: test.gbr*
+G04 Created on : Friday, 01 May 2020 at 17:03*
+%INBottom.gbr*%
+%MOMM*%
+%ADD13C,0.8*%
+%ADD14C,1.27*%
+%ADD15C,1.27*%
+%ADD16R,1.5X1.5*%
+%ADD17C,1.5*%
+%FSLAX53Y53*%
+G04*
+G71*
+G90*
+G75*
+G01*
+%LNBottom*%
+%LPD*%
+X20779Y24462D2*
+D13*
+Y27002D1*
+X18229D1*
+X14429D1*
+X18229D2*
+X19509D1*
+Y28272D1*
+X32209Y14302D2*
+X28399D1*
+Y16842D1*
+Y14302D2*
+X18239D1*
+X20779Y16842D2*
+X23329D1*
+Y28272D1*
+X27129D1*
+X20779Y19382D2*
+X14429D1*
+X20779Y21922D2*
+X18239D1*
+X28399D2*
+X32209D1*
+D14*
+X27129Y28272D3*
+D15*
+X19509D3*
+D14*
+X14429Y19382D3*
+D15*
+Y27002D3*
+D14*
+X18239Y21922D3*
+D15*
+Y14302D3*
+D14*
+X32209Y21922D3*
+D15*
+Y14302D3*
+D16*
+X28399Y24462D3*
+D17*
+Y21922D3*
+Y19382D3*
+Y16842D3*
+X20779D3*
+Y19382D3*
+Y21922D3*
+Y24462D3*
+M02*

assets/examples/files/test.txt

@@ -0,0 +1,28 @@
+M48
+;EXCELLON GENERATED BY FLATCAM v8.992 - www.flatcam.org - Version Date: 2020/05/01
+;Filename: test.txt
+;Created on : Friday, 01 May 2020 at 17:04
+INCH,LZ
+;FILE_FORMAT=2:4
+T1F00S00C0.0220
+T2F00S00C0.0354
+%
+T01
+X010681Y011130
+X007681Y011130
+X005681Y010630
+X007181Y008630
+X005681Y007630
+X007181Y005630
+X012681Y005630
+X012681Y008630
+T02
+X011181Y009630
+X011181Y008630
+X011181Y007630
+X011181Y006630
+X008181Y006630
+X008181Y007630
+X008181Y008630
+X008181Y009630
+M30

assets/examples/files/test_1.gbr

@@ -0,0 +1,30 @@
+G04*
+G04 GERBER (RE)GENERATED BY FLATCAM v8.992 - www.flatcam.org - Version Date: 2020/05/01*
+G04 Filename: test_1*
+G04 Created on : Friday, 01 May 2020 at 17:07*
+G04*
+G04 RS-274X GERBER GENERATED BY FLATCAM v8.992 - www.flatcam.org - Version Date: 2020/05/01*
+G04 Filename: test_1_edit*
+G04 Created on : Friday, 01 May 2020 at 17:06*
+%FSLAX24Y24*%
+%MOIN*%
+%ADD10C,0.003937*%
+
+G70*
+G90*
+G01*
+%LPD*%
+D10*
+X05118Y11417D02*
+X05118Y05118D01*
+X05118Y05118D02*
+X08661Y05118D01*
+X08661Y05118D02*
+X08661Y11417D01*
+X08661Y11417D02*
+X05118Y11417D01*
+X08661Y11417D02*
+X05118Y11417D01*
+X08661Y11417D02*
+X05118Y11417D01*
+M02*

assets/examples/open_file.FlatScript

@@ -0,0 +1,19 @@
+# ----------- START: This is needed only for the examples ----------------
+# first set the default location where to search for the files to be open and store it to the ROOT_FOLDER variable 
+set ROOT_FOLDER  [get_sys root_folder_path]
+
+# calculate the resources path for the examples we need to run and store it inside the PATH varaible
+set PATH ${ROOT_FOLDER}/assets/examples/files
+# ----------- END: This is needed only for the examples ----------------
+
+# set the working path to the path that holds the files we are going to work with
+set_path $PATH
+
+# load the GERBER file 
+open_gerber test.gbr
+
+# load the Excellon ifle
+open_excellon test.txt
+
+# plot them all so we can see them on canvas
+plot_all