Add engine temperature monitoring to diesel locomotive heat management system:
- Add engine field to heat_data struct (fluid_circuit_t type)
- Add EngineMaxTemperature config extraction in .fiz files
- Add engine overheat detection logic (is_hot check)
- Include engine.is_hot in PT status check
Implements issue #77: Oil, water and engine overheat lamps for diesel locomotives
Added a new optional section to .fiz files: `ffBrakeList`. It is used instead of `ffList` whenever the vehicle has its ED braking engaged.
Example (dynamic/pkp/elf_v1/inverter_kp.fiz):
```
ffList: Size=3
0 2.0
33.7 2.08
34.0 2.12
130.4 8.10
endff
ffBrakeList: Size=4
0 2.0
33.7 2.08
34.8 2.08
34.8 2.17
130.4 8.10
endff
```
```/home/debian/autobuilder/output/build/maszyna/application.h:41:10: error: extra qualification ‘eu07_application::’ on member ‘DiscordRPCService’ [-fpermissive]
41 | void eu07_application::DiscordRPCService(); // discord rich presence service function (runs as separate thread)
| ^~~~~~~~~~~~~~~~```
Czy C++20 jest nam potrzebne?
```/home/debian/autobuilder/output/build/maszyna/McZapkie/Mover.cpp:11346:34: error: ‘std::string’ {aka ‘class std::__cxx11::basic_string<char>’} has no member named ‘_Starts_with’
11346 | if (PantType._Starts_with("DSA")) // zakladam ze wszystkie pantografy DSA sa takie same
| ^~~~~~~~~~~~```
Kompletny absurd z 7cac46d:
```/home/debian/autobuilder/output/build/maszyna/particles.cpp:477:29: error: cannot bind non-const lvalue reference of type ‘cParser&’ to an rvalue of type ‘cParser’
477 | if( source.deserialize( cParser( templatepath + templatename + ".txt", cParser::buffer_FILE ) ) ) {
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~```
