Code and documentation fixes

- Unicode char replacement
- Documented duration/delays with packet upload
- Code tidy-up (parameters renaming)
- Set structs for init sequence
- Invalid conditional effect types now cause an error instead of silently defaulting
- Ported check for modified parameters to all effects
- Fix saturation handling in T500RS driver & update documentation to reflect it
- Update documentation to clarify dynamic packet code values
- Update examples to use hardware ID 1 instead of 0
- Moved Subtype system section to the bottom
- Hardened documentation style
- Provide details for "DC bias" terminology
- Do not discard 100% gain set but kept warning, more explicit.

Author: cazzoo

Kbuild

@@ -6,4 +6,4 @@ hid-tmff-new-y := \
 		src/tmtx/hid-tmtx.o \
 		src/tmtsxw/hid-tmtsxw.o \
 		src/tmtspc/hid-tmtspc.o \
-		src/tmt500rs/hid-tmt500rs.o
+		src/tmt500rs/hid-tmt500rs.o