loongson/pypi: links for threedcellcomposer

loongson/mirror ThreeDCellComposer-1.5.5.tar.gz
loongson/mirror threedcellcomposer-1.5.4.tar.gz
loongson/mirror ThreeDCellComposer-1.5.3.tar.gz
loongson/mirror ThreeDCellComposer-1.5.2.tar.gz
loongson/mirror ThreeDCellComposer-1.5.1.tar.gz
loongson/mirror ThreeDCellComposer-1.5.0.tar.gz
loongson/mirror ThreeDCellComposer-1.2.1.tar.gz