Fixing time

I have identified all of the bugs (hopefully) and marked everything that has to be fixed.

Fixed Stuff

• Current bit-stream builder in build_matrix writes all bits including the full 8-bit last data CW, then starts ECC. For M1/M3, the correct order is: 10 data CW (80 bits) + 4-bit partial + 6 ECC CW (48 bits). The current code writes all 17 CW as bits sequentially which gives the WRONG bit order.So I fixed the bit placement in build_matrix for M1/M3
• fixed encode_data to use zero padding for Micro QR and handle the M1/M3 last-4-bit rule.

Need to be fixed

• I need to fix _apply_mask to use Micro QR mask conditions (indices 1,4,6,7 of standard) for micro QR, and add a separate _MICRO_MASK_CONDITIONS list.
• Need to fix the _min_version capacity checker, which has the same wrong cc_bits values