Simple convertor temperature (C;K;F)

coder 19f2e6532e Change README.md: fix shels header and add types sections		3 lat temu
README.md	19f2e6532e Change README.md: fix shels header and add types sections	3 lat temu
cl_shell.py	6743251982 Add console line shell	3 lat temu
core.py	b52f91ea6d Add core functions	3 lat temu
gtk_shell.py	46401575cc Add Gtk+3 gui shell	3 lat temu

ConvertorTemperature

Simple termperature convertor on Python3

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