fix s7/t7. fix pipe symbols on extended. Made pipe symbols show by default

[Spooky-Firefox]

This pull request makes improvements to the MIPS pipeline simulator by fixing register naming errors and enhancing support for dynamic symbols in instruction memory. The most significant changes are grouped below:

Register Naming Fixes

• Corrected the order of register names in the REG_NAMES array in three files (mips_reg_file.rs, mips_mem_view_window.rs, and mips_reg_view_window.rs) to fix the placement of "t7" and "s7", ensuring registers are named according to the MIPS convention. [1] [2] [3]

Dynamic Symbol Support for Instruction Memory

• Updated the construction of the InstrMem component in mips_extended_pipe_example.rs to use the with_dynamic_symbols method, enabling dynamic symbols for pipeline registers (PC_IM, PC_DE, PC_EX, PC_DM).
• Modified the mips_pipe.json and mips_pipe_ex.json configuration files to set the dynamic flag to true for the pipeline registers (PC_DE, PC_EX, PC_DM, and PC_IM), ensuring these symbols are showed by default in the simulator. [1] [2] [3] [4]

[salon64]

lgtmdl!