v0.12.4

• Bugfix: The library crashed when events loaded from an external CSV file contained empty spaces (see #8). Thanks to @Liteom.
• Bugfix: The library could not compile for specific Linux kernels not providing PERF_MEM_LVLNUM_UNC and PERF_MEM_SNOOPX_PEER (see #7). Thanks to @Raphalex46 for pointing out.
• Perf Data Export: Samples can now be written as perf data files using Sampler::to_perf_file(), enabling analysis with standard perf ecosystem tools like perf report (see the documentation). Note that this feature is experimental.