logs: replace every fmt::print with a lg call instead (#1368)

Favors the `lg` namespace over `fmt` directly, as this will output the
logs to a file / has log levels.

I also made assertion errors go to a file, this unfortunately means
importing `lg` and hence `fmt` which was attempted to be avoided before.
But I'm not sure how else to do this aspect without re-inventing the
file logging.

We have a lot of commented out prints as well that we should probably
cleanup at some point / switch them to trace level and default to `info`
level.

I noticed the pattern of disabling debug logs behind some boolean,
something to consider cleaning up in the future -- if our logs were more
structured (knowing where they are coming from) then a lot this
boilerplate could be eliminated.

Closes #1358

decompiler/analysis/mips2c.cpp

@@ -2,6 +2,7 @@
 
 #include "mips2c.h"
 
+#include "common/log/log.h"
 #include "common/symbols.h"
 #include "common/util/print_float.h"
 #include "decompiler/Disasm/InstructionMatching.h"
@@ -1183,7 +1184,7 @@ struct JumpTableBlock {
 void run_mips2c_jump_table(Function* f,
                            const std::vector<int>& jump_table_locations,
                            GameVersion version) {
-  fmt::print("mips2c-jump on {}\n", f->name());
+  lg::info("mips2c-jump on {}", f->name());
   u32 magic_code = std::hash<std::string>()(f->name());
   std::unordered_map<int, int> loc_to_block;
   for (size_t bb_idx = 0; bb_idx < f->basic_blocks.size(); bb_idx++) {