Add more examples and solutions for kocher

BCB/Cheang et al/A_Formal_Approach_to_Secure_Speculation.pdf

BCB/Cheang et al/Example NI/exNI.c

BCB/Cheang et al/Example NI/exNI_cheang.c

BCB/Kiriansky et al/1807.03757.pdf

BCB/Kirzner et al/sec21-kirzner.pdf

BCB/Oleksenko et al/ConditionalBranchMisprediction/cbm.c

BCB/Oleksenko et al/sec20-oleksenko.pdf

BCB/Paul Kocher/Example 1/ex01.c

BCB/Paul Kocher/Example 1/ex01_ms.c

BCB/Paul Kocher/Example 1/ex01_optimal.c

BCB/Paul Kocher/Example 10/ex10.c

BCB/Paul Kocher/Example 10/ex10_cheang.c

BCB/Paul Kocher/Example 11/ex11.c

BCB/Paul Kocher/Example 11/ex11_cheang.c

BCB/Paul Kocher/Example 11/ex11_sol.c

BCB/Paul Kocher/Example 12/ex12.c

BCB/Paul Kocher/Example 12/ex12_sol.c

BCB/Paul Kocher/Example 13/ex13.c

BCB/Paul Kocher/Example 13/ex13_sol.c

BCB/Paul Kocher/Example 14/ex14.c