Simulate matroid oracles

[emthrm]

Description

Implement the following matroid oracles:

• Independent oracle [Robinson and Welsh, 1980, (5)][Hausmann and Korte, 1981, Section 1]
• Basis oracle [Robinson and Welsh, 1980, (9)][Hausmann and Korte, 1981, Section 1]
• Circuit oracle [Robinson and Welsh, 1980, (10)][Hausmann and Korte, 1981, Section 1]
• Rank oracle [Robinson and Welsh, 1980, (11)][Hausmann and Korte, 1981, Section 1]
• Closure oracle [Robinson and Welsh, 1980, (12)][Hausmann and Korte, 1981, Section 1]
• Flat oracle [Robinson and Welsh, 1980, (12)][Hausmann and Korte, 1981, Section 1]
• Spanning oracle [Hausmann and Korte, 1981, Section 1]
• Hyperplane oracle [Hausmann and Korte, 1981, Section 1]
• Girth oracle [Hausmann and Korte, 1981, Section 1]
• Uniform oracle [Hausmann and Korte, 1981, Section 5]
• Port oracle [Coullard and Hellerstein, 1996, Section 1]