Update all new Tasks

Task/File-input-output/Tcl/file-input-output-1.tcl

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+set in [open "input.txt" r]
+set out [open "output.txt" w]
+# Obviously, arbitrary transformations could be added to the data at this point
+puts -nonewline $out [read $in]
+close $in
+close $out

Task/File-input-output/Tcl/file-input-output-2.tcl

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+set in [open "input.txt" r]
+set out [open "output.txt" w]
+fcopy $in $out
+close $in
+close $out

Task/File-input-output/Tcl/file-input-output-3.tcl

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+file copy input.txt output.txt

Task/File-input-output/Tcl/file-input-output-4.tcl

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+#open file for writing
+set myfile [open "README.TXT" w]
+#write something to the file
+puts $myfile "This is line 1, so hello world...."
+#close the file
+close $myfile

Task/File-input-output/Tcl/file-input-output-5.tcl

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+#open file for reading
+set myfile [open "README.TXT" r]
+#read something from the file
+gets $myfile mydata
+#show what was read from the file
+#should print "This is line1, so hello world...."
+puts $mydata
+#close the file
+close $myfile