Add new proposal tables for gcc

PROPOSAL/dndx_1120376806476556890.txt

PROPOSAL/dndx_1197014842162656161.txt

PROPOSAL/dndx_11983211358157877399.txt

PROPOSAL/dndx_13301557889242875320.txt

PROPOSAL/dndx_15018799330594137542.txt

PROPOSAL/dndx_16729420940466727964.txt

PROPOSAL/dndx_16874573980223990681.txt

PROPOSAL/dndx_1745377846110207279.txt

PROPOSAL/dndx_17497753206335761141.txt

PROPOSAL/dndx_2117747601064343972.txt

PROPOSAL/dndx_4055461273439227736.txt

PROPOSAL/dndx_4083475746986193751.txt

PROPOSAL/dndx_4215415936654832226.txt

PROPOSAL/dndx_4994518499666952823.txt

PROPOSAL/dndx_6710166611034800651.txt

PROPOSAL/dndx_6793720257176600693.txt

PROPOSAL/dndx_7757808404550972535.txt

PROPOSAL/dndx_8276481945026162605.txt

PROPOSAL/dndx_8630882721587030100.txt

PROPOSAL/dndx_8876838304290159944.txt