v0.5.0 - Tune behavior with large PCIe BARs

![v0.5.0](https://github.com/GpuZelenograd/memtest_vulkan/raw/main/.github/memtest_vulkan_windows_rtx2070.png)

## Changes since v0.4.0
#### Compatibility
- memory type selection prefers simplest memory type without extra flags. This should help test GPUs with entire memory visible over PCIe BAR.
- Arm64 linux version now runs on Raspberry Pi 4

#### Test flow
- First 5 minutes are declared as a suggested "standard" test period
  - small pause in computations introduced just before period's end to do basic test on performance mode switch
- performance estimation displayed separately for writing and checking

#### Diagnostics
 - Introduced [troubleshooting section](https://github.com/GpuZelenograd/memtest_vulkan#troubleshooting) in Readme to help in common cases
   - including verbose logging mode for collecting information for bug reports

#### [Documentation](https://github.com/GpuZelenograd/memtest_vulkan/blob/main/Readme.md)
- extend section with theory of memory errors
- add development instructions
- better installation & usage instructions
- acknowledgements to [erupt library](https://gitlab.com/Friz64/erupt)

Cargo.lock

@@ -258,7 +258,7 @@ dependencies = [
 
 [[package]]
 name = "memtest_vulkan"
-version = "0.4.2"
+version = "0.5.0"
 dependencies = [
  "byte-strings",
  "chrono",

Cargo.toml

@@ -7,7 +7,7 @@
 [package]
 edition = '2021'
 name = 'memtest_vulkan'
-version = '0.4.2'
+version = '0.5.0'
 
 [dependencies]
 byte-strings = '0.2.2'