Refactor 3.2.2

[nitronit]

Minimum refactor start. As requested by @agouin =)

Moved the following to a new folder types:
Block type to a new file block.go
hrs.go
serialization.go
sign_state.go

[nitronit]

@agouin

Walkthrough

The codebase has undergone a significant refactor, primarily involving changes to package names and structures, aiming for better clarity and organization. The signer package has been split into more descriptive packages like config, nodes, connector, and metrics. This restructuring affects imports, type references, and function calls across various files, indicating a broad enhancement of the project's modularity and possibly its functionality.

Changes

File Pattern	Change Summary
.golangci.yml	Added import alias cconfig for github.com/strangelove-ventures/horcrux/pkg/config.
cmd/horcrux/cmd/...	New import statements; replaced signer with cconfig, thresholdTemP, nodesecurity; updated function calls and types.
pkg/config/...	Package renamed from signer to config; default values and usage updates.
pkg/connector/...	Package renamed from signer to connector; new Connector type; function calls now use metrics.
pkg/metrics/metrics.go	Package renamed from "signer" to "metrics"; variable and method renaming.
pkg/nodes/...	Package rename from "signer" to "nodes" or "nodes_test"; updates to function signatures, structs, configurations, and metrics handling.
pkg/thresholdTemP/...	Package name changed from signer to thresholdTemP; additional imports; method and parameter type changes.
pkg/types/...	New functions added; existing methods modified for clarity and functionality.
signer/...	Various files updated with nodes package imports; references updated to match new package structures and types.
test/...	Imports and references updated to new package names like config, thresholdTemP, and nodesecurity; type and function call updates.