PRAGUE, Feb 1 (Reuters) - Tens of thousands of Czechs ?rallied ?on Sunday in support of ?President Peter Pavel after he refused to approve the nomination ?of a minister to the new eurosceptic coalition government who performed a Nazi salute and ?posted Nazi memorabilia. In an escalating rift ?with the government, the pro-EU and pro-Ukraine Pavel last week accused Foreign Minister ?Petr Macinka ?of sending text messages via his adviser that threatened the president with "consequences" if he continued to oppose Filip Turek's nomination as Czech environment minister. Turek, a member of Macinka's right-wing Motorists party, has faced criticism for...